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1. Handbook of Synchrotron Radiation. Vol. 1. (Ed. E.-E.Koch). North-Holland, Amsterdam, 1983 2. Handbook of Synchrotron Radiation. Vol. 2. (Ed. G.V.Marr). North-Holland, Amsterdam, 1987 3. Handbook of Synchrotron Radiation. Vol. 3. (Eds G.B.Brown, D.E.Moncton). North-Holland, Amsterdam, 1991 4. Handbook of Synchrotron Radiation. Vol. 4. (Eds S.Ebashi, M.Koch, E.Rubenstein). North-Holland, Amsterdam, 1991 5. ê.î.‡°ªº¶€, ã.ã.ˆ±¾¸º. �¸º¼ª¶¢ª¶ºº¶° ¸»¾¤‚°º¸°. ‡°¶ª¸ò ¸ ð ©·°ª¸¹°º¢. ƒº°ªŠ¶ˆ¢¶¹¸»¯ˆ¢,  €ˆ, 1986 6. ä.ï.줾¸·ˆº¶€, á.ï.� ª¸º© ¸±. ã  º. ’°º¢Š°º¶©·° ¢ªˆ¾‹º�± ¹°¢¶¯ ¸»¤‚°º¸ò ©¢ª¤ ¢¤ª� ˆ¹¶ª½º�¼ ¢°¾. EXAFS-�·° ¢ª¶© ¶·¸ò. (‘¶¯ ª°¯. ä.î.踯¶¹¸ª¶€ˆ).  ˆ, ﶀ¶©¸†¸ª© , 1988. �. 94 7. ê.î.‡°ªº¶€. ²©·°¼¸ ½¸». ºˆ¤ , 165, 429 (1995) 8. H.Winick. J. Synchr. Radiat., 5, 168 (1998) 9. M.Madou. Fundamentals of Microfabrication. CRC Press, Boca Raton FL, New York, 1997 10. Medical Application of Synchrotron Radiation. (Eds M.Ando, C.Uyano). Springer-Verlag, Berlin, 1998 11. D.G.Schulze, P.M.Bertch. Adv. Agronomy, 55, 1 (1995) 12. �¢‚°¢ �¸†¸ª© ¶Š¶ …°º¢ªˆ ©¸º¼ª¶¢ª¶ºº¶Š¶ ¸»¾¤‚°º¸ò »ˆ 1998 Š. ꉴ �� ’áï, ﶀ¶©¸†¸ª© , 2000 13. Kurchatov Synchrotron Radiation Source, 1993 û 1994. Activity Report. Moscow, 1995 14. Y.Utsumi, J.Takahashi. Jpn. J. Appl. Phys. 2, Lett., 37, L1268 (1998) 15. R.K.Kupka, F.Bouamrane, C.Cremers, S.Megtert. Appl. Surf. Sci., 164, 97 (2000) 16. P.Dumas, G.L.Carr, G.P.Williams. Analysis, 28, 68 (2000) 17. R.A.Palmer, G.D.Smith, P.Chen. Vib. Spectrosc., 19, 131 (1999) 18. B.Diviacco, R.P.Walker. Nucl. Instrum. Methods Phys. Res. A, 368, 522 (1996) 19. J.L.Laclare. J. Phys. IV, Colloq., 7, C2-39 (1997) 20. 帽ªˆ ¢¶¹°¢ª¸ò © ¸©·¶¾‹»¶€ˆº¸°¹ ©¸º¼ª¶¢ª¶ºº¶Š¶ ¸»¾¤‚°º¸ò. (‘¶¯ ª°¯. ä.ï.줾¸·ˆº¶€ˆ).  ˆ, ﶀ¶©¸†¸ª© , 1989 21. V.V.Aristov, A.I.Erko, B.Vidal. Diffraction X-Ray Optics. IOP Publ., London, 1995 22. A.G.Michette. Optical Systems for Soft X-Rays. Plenum, New York, 1986 23. â.ì.㈱º�¢°±º. �¶€ª°¹°ººˆò  ª¸©¢ˆ¾¾¶Šªˆ½¸ò. ‡.1.  ˆ,  €ˆ, 1979 24. .á.᩾ˆº¶€. 꺩¢ª¤¹°º¢ˆ¾‹º�° ¹°¢¶¯� ª°º¢Š°º¶©¢ª¤ ¢¤ªº¶Š¶ ˆºˆ¾¸»ˆ. 껯-€¶ îä²,  €ˆ, 1982 25. Ẉ¾¸» ·¶€°ª¼º¶©¢¸ ¹°¢¶¯ˆ¹¸ ¶¥°- ¸ ª°º¢Š°º¶€© ¶± ½¶¢¶ð¾° ¢ª¶ºº¶± ©·° ¢ª¶© ¶·¸¸. ,  €ˆ, 1987 26. F.F.Fujita. Contemp. Phys., 40, 323 (1999) 27. Principles, Applications, Technique of EXAFS, SEXAFS and XANES. (Eds D.C.Koningsberger, R.Prins). Wiley, New York, 1988 28. X-Ray Absorption Fine Structure. (Ed. S.S.Husnain). Ellis Horwood, New York, 1991


²©·°¼¸ ¼¸¹¸¸ 70 (5) 2001 69. J.Nordgren, J.Guo. J. Electron Spectrosc. Relat. Phenom., 110 û 111, 1 (2000) 70. E.J.Nordgren. J. Phys. IV, Colloq., 7, C2-9 (1997) 71. J.Guo, J.Nordgren. J. Electron Spectrocs. Relat. Phenom., 110 û 111, 105 (2000) 72. F.M.F.De Groot. J. Electron Spectrosc. Relat. Phenom., 92, 207 (1998) 73. G.M.Bancroft, Y.-F.Hu. Inorg. Electron Struct. Spectrosc., 1, 443 (1999) 74. M.Taniguchi. J. Alloys Compd., 286, 114 (1999) 75. A.Nillson. In Application of Synchrotron Radiation. Springer-Verlag, Berlin, 1995. P. 65 76. C.Laubschat. J. Electron Spectrosc. Relat. Phenom., 96, 127 (1998) 77. J.C.Green, N.Kaltsoyanis, K.H.Sze, M.MacDonald. J. Am. Chem. Soc., 116 1994 (1994) 78. X.Li, G.M.Bancroft, R.J.Puddephatt, Y.-F.Hu, K.H.Tan. Organometallics, 15, 2890 (1996) 79. Future Perspectives of X-Ray Photoelectron Spectroscopy with Synchrotron Radiation. (Eds A.M.Bradshaw, C.S.Fadley, N.M°rtensson). J. Electron Spectrosc. Relat. Phenom. (Special Issue), 75 (0) (1995) 80. A.M.Bradshaw, D.P.Woodruff. In Application of Synchrotron Radiation. Springer Ser. Surface Science. Vol. 35. (Ed. W.Ebernardt). Springer-Verlag, Berlin; Heidelberg, 1995, P. 127 81. C.S.Fadley, A.P.Kaduwela, M.A.Vannove, Z.Hussain. J. Electron Spectrosc. Relat. Phenom., 75, 273 (1995) 82. C.S.Fadley. Prog. Surf. Sci., 54, 341 (1997) 83. L.J.Terminello, B.L.Petersen, J.J.Barton. J. Electron Spectrosc. Relat. Phenom., 75, 299 (1995) 84. C.S.Fadley. In Synchrotron Radiation Research: Advances in Surface and Interface Science. Vol. 1. Techniques. (Ed. R.Z.Bachrach). Plenum, New York, 1992. P. 421 85. M.M.Harding. Acta Crystallogr., Sect. B, 51, 432 (1995) 86. J.R.Helliwell. Acta Crystallogr., Sect. A, 54, 738 (1998) 87. P.Coppens. Synchrotron Radiation Crystallography. Academic Press, London, 1992 88. P.Coppens. J. Appl. Crystallogr., 26, 499 (1993) 89. M.M.Harding. Mater. Sci. Forum, 228, 3 (1996) 90. P.Coppens, R.Bolotovsky, V.Kezerashvili, A.Darovsky, Y.Gao. Trans. Am. Crystallogr. Assoc., 31, 11 (1997) 91. P.Coppens, G.Wu, A.Volkov, Y.Abramov, Y.Zhang, W.K.Fullagar, L.Ribaud. Trans. Am. Crystallogr. Assoc., 34, 51 (2000) 92. W.Rieck, H.Euler, H.Schulz. Acta Crystallogr., Sect. A, 44, 1099 (1988) 93. R.W.Broach, R.L.Bedard, S.G.Song, J.J.Pluth, A.Bram, C.Riekel, H.-P.Weber. Chem. Mater., 11, 2076 (1999) 94. E.F.Skelton, J.D.Ayers, S.B.Qudri, N.E.Moulton, K.P.Cooper, L.W.Finger, H.K.Mao, Z.Hu. Science, 253, 1123 (1991) 95. K.D.Eichnorn. Eur. J. Mineral., 9, 673 (1997) 96. R.B.Neder, M.Bourghammer, Th.Grasl, H.Schulz. Z. Kristallogr., 211, 763 (1996) 97. K.Oshumi, K.Hagiya, M.Okhmasa. J. Appl. Crystallogr., 24, 340 (1991) 98. R.B.Neder, M.Burghammer, T.Crasl, H.Schulz. Z. Kristallogr., 211, 365 (1996) 99. R.Flaig, T.Koritzansky, J.Janczak, H.-G.Krane, W.Morgenroth, P.Luger. Angew. Chem., Int. Ed. Engl., 38, 1397 (1999) 100. E.N.Maslen, V.A.Streltsov, N.R.Streltsova, N.Ishizawa. Acta Crystallogr., Sect. B, 51, 929 (1995) 101. K.Eichhorn, A.Kirfel. Acta Crystallogr., Sect. B, 47, 843 (1991) 102. B.B.Iversen, F.K.Larsen, A.A.Pinkerton, A.Martin, A.Darovsky, P.A.Reynolds. Inorg. Chem., 37, 4559 (1998) 103. H.Graafsma, M.Souhassou, A.Puig-Molina, S.Harkema, æ.Kvick, C.Lecomte. Acta Crystallogr., Sect. B, 54, 193 (1998) 104. F.Frolow, L.Chernyak, D.Cahen. Tern. Mult. Compd., 152, 67 (1998) 105. F.S.Nielsen, P.Lee, P.Coppens. Acta Crystallogr., Sect. B, 42, 359 (1986)

459 106. T.Koritsanszky, R.Flaig, D.Zobel, H.G.Krane, W.Morgenroth, P.Luger. Science, 279, 356 (1998) 107. T.Koritzanszky. In International Union Crystallography XVIII Congress and General Assembly. (Collected Abstracts). Glasgow, 1999. M09.OD.002 108. B.B.Iversen. In International Union Crystallography XVIII Congress and General Assembly. (Collected Abstracts). Glasgow, 1999. M09.OD.003 109. â.ì.㈱º�¢°±º, ã.î.´ª¸¯ ¸º, ã..꺯°º†¶¹. �¶€ª°¹°ººˆò  ª¸©¢ˆ¾¾¶Šªˆ½¸ò. ‡. 2.  ˆ,  €ˆ, 1979. �. 193 110. P.F.Lindley. Radiat. Phys. Chem., 45, 367 (1995) 111. K.Moffat, Z.Ren. Curr. Opin. Struct. Biol., 7, 689 (1997) 112. J.R.Helliwell, S.Ealick, P.Doing, T.Irring, M.Szemenyi, Acta Crystallogr., Sect. D, 49, 120 (1993) 113. W.Minor, D.R.Tomchick, Z.Otwinowski. Structure (London), 8, R105 (2000) 114. Structural Biology and Synchrotron Radiation: Evaluation of Resources and Needs. http://www.ornl.gov/hgmis/biosync 115. A.Deacon, T.Gleichmann, A.J.Kalb, H.Price, J.Raftery, G.Bradbrook, J.Yariv, J.R.Helliwell. J. Chem. Soc., Dalton Trans., 93, 4305 (1997) 116. C.Jelsch, M.M.Teeter, V.Pickon-Pesme, R.H.Blessing, C.Lecomte. In International Union Crystallography XVIII Congress and General Assembly. (Collected Abstracts). Glasgow, 1999. M11.BB.004 117. J.P.Abrahams, A.G.W.Leslie, R.Lutter, J.E.Walker. Nature (London), 370, 621 (1994) 118. D.H.Bilderback, S.A.Hoffmann, D.J.Thiel. Science, 263, 201 (1994) 119. B.M.Kariuki, M.M.Harding. J. Synchr. Radiat., 2, 185 (1995) 120. X.J.Yang, Z.Ren, K.Moffat. Acta Crystallogr., Sect. D, 54, 367 (1998) 121. R.B.G.Ravelli, M.L.Raves, S.H.W.Scheves, A.Schouten, J.Kroon, J. Synchr. Radiat., 6, 19 (1999) 122. T.Bruckel, M.Lippert, B.Bouchard, T.Schmidt, J.R.Schneider, W.Jauch. Acta Crystallogr., Sect. A, 49, 679 (1993) 123. M.J.Cooper, W.G.Stirling. Radiat. Phys. Chem., 56, 85 (1999) 124. T.Bruckel. Acta Phys. Pol. A, 91, 669 (1997) 125. D.Mannix, S.Langridge, G.H.Lander, J.Rebizant, M.J.Longùeld, W.G.Stirling, W.J.Nutall, S.Coburn, S.Wasserman, L.Soderholm. Physica B, 262, 125 (1999) 126. D.Gibbs, D.E.Moncton, K.L.D'Amico, J.Bohr, B.H.Grier. Phys. Rev. Lett., 55, 234 (1985) 127. H.Graafsma, G.W.J.C.Heunen, C.Schulze. J. Appl. Crystallogr., 31, 414 (1998) 128. H.Graafsma, A.Paturle, L.Wu, H.-S.Sheu, J.Majewski, G.Poorthuis, P.Coppens. Acta. Crystallogr., Sect. A, 48, 113 (1992) 129. S.J.van Reeuwijk, H.Graafsma. In International Union Crystallography XVIII Congress and General Assembly. (Collected Abstracts). Glasgow, 1999. P05.10.005 130. A.Puig-Molina, H.Mueller, H.Graafsma, A.Kvick. In International Union Crystallography XVIII Congress and General Assembly. (Collected Abstracts). Glasgow, 1999. P11.19.025. 131. L.X.Chen, M.K.Bowman, Zh.Wang, P.A.Montano, J.R.Norris. J. Phys. Chem. B, 98, 9457 (1994) 132. H.Fuess. An. Quim. Int. Ed., 94, 388 (1998) 133. A.N.Fitch. In Proceedings of the 6th Summer School on Neutron Scattering: Complementary between Neutron and Synchrotron X-Ray Scattering. (Ed. A.Furrer). World Sci., New York, 1998. P. 41 134. B.A.Latella, B.H.O'Connor. J. Am. Ceram. Soc., 80, 2941 (1997) 135. P.Norby. J. Appl. Crystallogr., 30, 21 (1997) 136. P.G.Fagan, R.B.Hammond, K.J.Roberts, R.Docherty, A.P.Chorlton, W.Jones, G.D.Potts. Chem. Mater., 7, 2322 (1995) 137. W.I.F.David, K.Shankland, N.Shankland. Chem. Commun., 931 (1998) 138. K.D.Knudsen, P.Pattison, A.N.Fitch, R.J.Kernik. Angew. Chem., Int. Ed. Engl., 37, 2340 (1997) 139. A.Kern, A.Coelho. In International Union Crystallography XVIII Congress and General Assembly. (Collected Abstracts). Glasgow, 1999. P05.OD.001 140. R.J.Chernik, A.K.Cheetham, C.K.Prout, D.J.Watkin, A.P.Wilkinson, B.T.M.Willis. J. Appl. Crystallogr., 24, 222 (1991)


460 141. A.N.Fitch, H.Jobic. J. Chem. Soc., Chem. Commun., 1516 (1993) 142. R.E.Dennibier, M.Pink, J.Sieler, P.W.Stephens. Inorg. Chem., 36, 3398 (1997) 143. R.E.Morris, J.J.Owen, A.K.Cheetham. J. Phys. Chem. Solids, 56, 1297 (1995) 144. M.A.Roberts, A.N.Fitch, A.V.Chadvick. J. Phys. Chem. Solids, 56, 1353 (1995) 145. R.W.Broach, R.M.Kirchner, N.K.McGuire, C.C.Chao. J. Phys. Chem. Solids, 56, 1363 (1995) 146. T.R.Jensen, P.Norby, A.N.Christensen, J.C.Hanson. Microp. Mesop. Mater., 26, 77 (1998) 147. D.M.Poojary, A.Clearùeld. J. Organomet. Chem., 512, 237 (1995) 148. R.E.Dennibier, U.Behrens, F.Olbrich. J. Am. Chem. Soc., 120, 1430 (1998) 149. J.E.Fischer, G.Bendele, R.Dinnebier, P.W.Stephens, C.L.Lin, N.Bykovets, Q.Zhu. J. Phys. Chem. Solids, 56, 1445 (1995) 150. E.Nishibori, M.Takata, M.Sakata, M.Inakuma, H.Shinohara. Chem. Phys. Lett., 298, 79 (1998) 151. E.Nishibori, M.Takata, M.Sakata, H.Shinohara. J. Synchr. Radiat., 5, 977 (1998) 152. C.M.Brown, L.Cristoùlini, K.Kordatos, K.Prassides, C.Bellavia, R.Gonzales, K.M.Keshavorz, F.Wude, A.K.Cheetham, J.P.Zhang, W.Andreoni, A.Currion, A.N.Fitch, P.Pattison. Chem. Mater., 8, 2548 (1996) 153. R.E.Dinnebier, P.W.Stephens, J.K.Carter, A.N.Lommen, P.A.Heiney, A.R.McGhie, L.Branrd, A.B.Smith. J. Appl. Crystallogr., 28, 327 (1995) 154. R.E.Dennibier, F.Olbrich, S. van Smaalen, P.W.Stephens. Acta Crystallogr., Sect. B, 53, 153 (1997) 155. Y.Kubota, M.Takata, M.Sakata. J. Phys., Condens. Matter, 5, 8245 (1993) 156. M.Takata, Y.Kubota, M.Sakata. Z. Naturforsch. A, Phys. Sci., 48, 75 (1993) 157. S.Yamamura, M.Takata, M.Sakata. J. Phys. Chem. Solids, 58, 117 (1997) 158. T.Wessels, C.Baerlochev, L.B.McCusker. Science, 284, 477 (1999) 159. C.J.Benmore, B.L.Tomberli, P.A.Egelstaff. In International Union Crystallography XVIII Congress and General Assembly. (Collected Abstracts). Glasgow, 1999. P06.OF.001 160. J.Poulsen, J.Neuefeind, H.B.Neumann, J.R.Schneider, M.D.Zeider. J. Non-Cryst. Solids, 188, 63 (1995) 161. S.Mobilio, C.Meneghini. J. Non-Cryst. Solids, 232 û 234, 25 (1998) 162. H.Schlenz, R.Grabinski, A.Kirfel. In International Union Crystallography XVIII Congress and General Assembly. (Collected Abstracts). Glasgow, 1999. P07.10.001 163. T.R.Welberry, Th.Proffen. Acta Crystallogr., Sect. A, 54, 661 (1998) 164. T.R.Welberry. In International Union Crystallography XVIII Congress and General Assembly. (Collected Abstracts). Glasgow, 1999. K07.03.001 165. A.Mahendrasingam, V.T.Forsyth, R.Hussain, R.J.Greenall, W.J.Pigram, W.Fuller. Science, 233, 195 (1986) 166. G.Buldt, K.Konno, K.Nakanishi, H.-J.Plohn, B.N.Rao, « « N.A.Dencher. Photochem. Photobiol., 54, 873 (1991) 167. W.Bras, A.J.Ryan. Adv. Colloid Interface Sci., 75, 1 (1998) 168. J.C.Dore, A.N.North, J.C.Rigden. Radiat. Phys. Chem., 45, 413 (1995) 169. C.Riekel, P.Bosecke, O.Diat, P.Engstrom. J. Mol. Struct., 383, 291 (1996) 170. G.Panick, R.Malessa, R.Winter, R.Gert, K.J.Frye, C.A.Royer. J. Mol. Biol., 275, 90 (1998) 171. G.Barone, Z.Sayers, D.Svergun, M.H.J.Koch. J. Synchr. Radiat., 6, 1031 (1999) 172. M.Megens, C.M.van Kats, P.Bosecke, V.L.Vos. J. Appl. Crystallogr., 30, 637 (1997) 173. A.F.Craevich, O.L.Alves, L.C.Barbosa. Rev. Sci. Instrum., 66, 1338 (1995) 174. A.Craevich. J. Phys. I, Gen Phys. Stat. Phys Condens. Matter Cross.-Discipl. Phys., 2, 801 (1992) 175. M.F.Butler, A.M.Donald, A.J.Ryan. Polymer, 38, 5521 (1997) 176. P.P.E.A.de Moor, T.P.M.Beelen, B.U.Komanchek, O.Dlat, R.A.Santen. J. Phys. Chem. B, 101, 11077 (1997)

‰.ã.餆ˆ€¸‚¤©, „..�¾¶€¶¼¶¢¶€ 177. J.S.Rigden, A.N.North, A.R.Mackie. Prog. Colloid Polym. Sci., 93, 63 (1993) 178. A.N.North, J.S.Rigden, A.R.Mackie. Rev. Sci. Instrum., 63, 1741 (1992) 179. E.D.Isaacs, P.M.Platzman. Phys. Today, 49, 40 (1996) 180. H.Hayashi, N.Watanabe, Y.Udagawa, J. Synchr. Radiat,. 5, 1052 (1998) 181. F.Sette, G.Ruocco. Eur. News, 26, 78 (1995) 182. G.Ruocco, F.Sette. Bull. Soc. Fr. Phys., 115, 25 (1998) 183. E.Burkel. Rep. Prog. Phys., 63, 171 (2000) 184. N.G.Alexandropoulos. Nucl. Instrum. Methods Phys. Res. A, 308, 267 (1991) 185. W.Schulke, U.Bonse, H.Nagasawa, A.Kaprolat, A.Berthold. Phys. « Rev. B, 38, 2112 (1988) 186. C.Blaas, J.Redinger, S.Manninen, V.Honkimaki, K.Hamalainen, « « «« P.Suortti. Phys. Rev. Lett., 75, 1984 (1995) 187. K.Tohji, Y.Udagawa. Phys. Rev. B, 39, 7590 (1989) 188. F.Gelmukhanov, H.Agren. Physica B, 208 û 209, 100 (1995) 189. H.Nagasawa. J. Phys. (Paris), 48 (C-9, Pt. 2), 863 (1987) 190. W.Schulke, A.Berthold, A.Kaprolat, H.-J.Guntherodt. Phys. Rev. « « Lett., 60, 2217 (1988) 191. W.Schulke, K.-J.Gabriel, A.Berthold, H.Shulte-Schrepping. « Solid State Commun., 79, 657 (1991) 192. Y.Ma. J. Electron Spectrosc. Relat. Phenom., 79, 131 (1996) 193. G.Drager. Surf. Invest., 13, 447 (1998) « 194. U.van Barck, R.L.Mossbauer, E.Gerdau, R.Ruffer, R.Holletz, « « « G.Smirnov, P.Hanson. Phys. Rev. Lett., 59, 355 (1987) 195. H.Grunsteudel, W.Meyer-Klaucke, A.X.Trautwein, H.Winkler, « O.Leupold, J.Metge, E.Gerdau, H.D.Ruter, A.Q.R.Baron, « A.I.Chumakov, H.F.Grunsteudel, R.Ruffer, M.Haas, E.Realo, « « D.Mandon, R.Weiss, H.Toftlund. In Bioinorganic Chemistry: Transition Metals in Biology and their Coordination Chemistry (Ed. A.X.Trautwein). Wiley-VCH, New York, 1997. P. 760 196. A.X.Trautwein, H.Paulsen, E.Realo, H.D.Ruter, H.Grunsteudel, « « R.Weiss, M.Haas, H.Winkler, O.Leupold, D.Mandon, B.F.Matzanke, W.Meyer-Klaucke. Inorg. Chim. Acta, 275, 334 (1998) 197. V.Schunemann, H.Winkler. Rep. Prog. Phys., 63, 263 (2000) « 198. W.Sturhahn, E.E.Alp, T.S.Toellner, P.Hession, M.Hu, J.Sutter. Hyperùne Interact. (Netherlands), 113, 47 (1998) 199. S.Nasu. Hyperùne Interact., 113, 97 (1998) 200. M.Pleines, R.Lubbers, M.Strecker, G.Wortmann, O.Leupold, « Yu.Shvyd'ko, E.Gerdau, J.Metge. Hyperùne Interact. (Netherlands), 120, 181 (1999) 201. R.Lubbers, M.Pleines, H.-J.Hesse, G.Wortmann, « H.F.Grunsteudel, R.Ruffer, O.Leupold, J.Zukrowski. Hyperùne « « Interact. (Netherlands), 120, 49 (1999) 202. L.Nielsen, A.Mugarza, M.F.Rozu, R.Coehoorn, R.M.Junglblut, F.Rozeboom, A.Q.R.Baron, A.I.Chumakov, R.Ruffer. « Phys. Rev. B, 58, 8590 (1998) 203. V.G.Kohn, G.V.Smirnov. Hyperùne Interact. (Netherlands), 123 û 124, 327 (2000) 204. B.Sepiol, C.Czihak, A.Meyer, G.Vogl, J.Metge, R.Ruffer. « Hyperùne Interact. (Netherlands), 113, 449 (1998) 205. B.Sepiol, A.Meyer, G.Vogl, R.Ruffer, A.I.Chumakov, « A.Q.R.Baron. Phys. Rev. Lett., 76, 3220 (1996) 206. B.Sepiol, A.Meyer, G.Vogl, H.Franz, R.Ruffer. Phys. Rev. B, 57, « 10433 (1998) 207. A.Chumakov, R.Ruffer. Hyperùne Interact. (Netherlands), 113, 59 « (1998) 208. A.I.Chumakov, A.Barla, R.Ruffer, J.Metge, H.F.Grunsteudel, « « H.Grunsteudel, J.Plessel, H.Winklemann, M.M.Abd-Elmeguid. « Phys. Rev. B, 58, 254 (1998) 209. E.Gerdau, U.van Burck. In Resonant Anomalous X-Ray Scattering. « (Eds G.Materlik, C.J.Sparks, K.Fischer). Elsevier, Amsterdam, 1994. P. 589 210. R.Rohlsberger. Hyperùne Interact. (Netherlands), 123 û 124, 455 (2000) 211. J.Kirz, M.Howells. Q. Rev. Biophys., 28, 33 (1995) 212. H.Ade, X.Zhang, S.Cameron, C.Costello, J.Kirz, S.Williams. Science, 258, 972 (1992)


²©·°¼¸ ¼¸¹¸¸ 70 (5) 2001 213. H.Ade, B.Hsiao, G.Mitchell, E.Rightor, A.P.Smith, R.Cieslinski. Mater. Res. Soc. Proc., 375, 293 (1995) 214. H.Ade. Trends Polym. Sci., 5, 58 (1997) 215. X-Ray Microscopy and Spectromicroscopy. (Eds J.Thieme, G.Schmahl, E.Umbach, D.Rudolf). Springer-Verlag, Berlin, 1998 216. M.Moore. Radiat. Phys. Chem., 45, 427 (1995) 217. F.Zontone, L.Moncini, R.Barrett, J.Baruchel, J.Hartwig, Y.Epelboin. J. Synchr. Radiat., 3, 173 (1996) 218. B.K.Tonner. Acta Phys. Pol., 86, 537 (1994) 219. J.Baruchel. In X-Rays and Neutrons Dynamical Diffraction. Theory and Applications. (Ed. A.Authier). Plenum, New York, 1996. P. 199 220. P.Jacobs, E.Sevens, M.Kunnen. Sci. Total Environ., 167, 161 (1995) 221. U.Bonse, F.Busch. Prog. Biophys. Mol. Biol., 65, 133 (1996) 222. W.S.Haddad, I.McNulty, J.E.Trebes, E.H.Anderson. Proc. SPIE û Int. Soc. Opt. Eng., 2516, 102 (1995) 223. A.Snigirev, I.Snigireva, V.Kohn, S.Kuznetsov, I.Schelokov. Rev. Sci. Instrum., 66, 5486 (1995) 224. A.Snigirev, I.Snigireva, A.Suvorov, M.Kocsis, V.Kohn. ESRF Newslett., 24, 23 (1995) 225. A.A.Snigirev, C.Raven. Bull. Soc. Fr. Phys., 110, 10 (1997) 226. G.Grubel, D.Abernathy, T.Thurn-Albrecht, W.Steffen, « A.Patkowski, G.Meier, E.W.Fischer. ESRF Newslett., 26, 10 (1996) 227. S.B.Dieker, R.Pindak, R.M.Fleming, I.K.Robinson, L.Berman. Phys. Rev. Lett., 75, 449 (1995) 228. S.G.J.Mochrie, A.M.Mayes, A.R.Sandy, M.Sutton, S.Brauer, G.B.Stephenson, D.L.Albernathy, G.Grubel. Phys. Rev. Lett., 78, « 1275 (1997) 229. S.Brauer, G.B.Stephenson, M.Sutton, R.Bruning, E.Dufresne, « S.G.J.Mochrie, G.Grubel, J.Als-Nielsen, D.Abernathy. « Phys. Rev. Lett., 74, 2010 (1995) 230. Z.H.Kai, B.Lai, W.B.Yun, I.McNulty, K.G.Huang, T.P.Russel. Phys. Rev. Lett., 73, 82 (1994) 231. K.Burger, D.Cox, R.Papoular, W.Prandl. J. Appl. Crystallogr., 31, 789 (1998) 232. K.Burger, W.Prandl, S.Doyle. Z. Kristallogr., 212, 493 (1997) 233. D.M.Proserpio, G.Artioli, S.Mulley, G.Chacon, C.Zheng. Chem. Mater., 9, 1463 (1997) 234. A.Noudon. NATO ASI, Ser. C, 452, 203 (1995) 235. H.G.Haubold, X.H.Wang, H.Jungbluth, G.Goerigk, W.Schilling. J. Mol. Struct., 383, 283 (1996) 236. B.Bouchetfabre, P.Dangelo, N.V.Pvel. Nucl. Instrum. Methods Phys. Res. B, 97, 539 (1995) 237. S.Sasaki, T.Toyoda, K.Yamanaki, K.Okhubo. J. Synchr. Radiat., 5, 920 (1998) 238. A.P.Wilkinson, A.K.Cheetham, D.E.Cox. Acta Crystallogr., Sect. B, 47, 155 (1991) 239. Y.Gao, M.R.Pressprich, P.Coppens. Acta Crystallogr., Sect. A, 49, 21 (1993) 240. Y.Gao, A.Frast-Jensen, M.R.Pressprich, P.Coppens. J. Am. Chem. Soc., 114, 9214 (1992) 241. G.Wu, Y.Zhang, L.Ribaud, P.Coppens, C.Wilson, B.B.Iversen, F.K.Larsen. Inorg. Chem., 37, 6078 (1998) 242. W.A.Hendrickson. Science, 254, 54 (1991) 243. W.A.Hendrickson, C.M.Ogata. Methods Enzymol., 276, 494 (1997) 244. W.A.Hendrickson. J. Synchr. Radiat., 6, 845 (1999) 245. A.Cassetta, A.M.Deacon, S.E.Ealick, J.R.Helliwell, A.W.Thompson. J. Synchr. Radiat., 6, 822 (1999) 246. S.Stuhrmann, K.S.Bartels, W.Brannwarth, R.Doose, F.Dauvergne, A.Gabriel, A.Knochel, M.Marmotti, H.B.Stuhrmann. J. Synchr. Radiat., 4, 298 (1997) 247. �.¡¢¤ª¹ˆºº, ì.∪¢°¾©, î.§ñ¢‚, î.¹¶¢¢¸, é.鈱°ª©, å¥.‡¶¹ˆ©, ì.‡ªˆ¹©, §.â.¡¢¤ª¹ˆºº. ã  º. ‘ª¶†¾°¹� ©¶€ª°¹°ºº¶±  ª¸©¢ˆ¾¾¶Šªˆ½¸¸. �¢ª¤ ¢¤ªº�° ¸©©¾°¯¶€ˆº¸ò  ª¸©¢ˆ¾¾¶€.  ˆ,  €ˆ, 1996. �. 276 248. M.Schiltz, A.Kvick, O.S.Svensson, W.Shepard, E.de la Fortelle, T.Pranfe, R.Kahn, G.Brigogne, R.Fourme. J. Synchr. Radiat., 4, 287 (1997) 249. I.J.Pickering, M.Sansone, J.Marsch, G.N.George. J. Am. Chem. Soc., 115, 6302 (1993) 250. J.Vacinova, J.L.Hadeau, P.Wolfers, J.P.Lauriat, E.Elkain. J. Synchr. Radiat., 2, 236 (1995)

461 251. J.P.Attùeld. Mater. Sci. Forum, 228, 201 (1996) 252. Resonant Anomalous X-Ray Scattering. Theory and Applications. (Eds G.Materlik, C.J.Sparks, K.Fischer). Elsevier; North-Holland, Amsterdam, 1994 253. ’.î.깈¹¶€, ƒ.§.ˆ¹°¯¥ˆº¶€. ã  º. ‘ª¶†¾°¹� ©¶€ª°¹°ºº¶±  ª¸©¢ˆ¾¾¶Šªˆ½¸¸. �¢ª¤ ¢¤ªº�° ¸©©¾°¯¶€ˆº¸ò  ª¸©¢ˆ¾¾¶€.  ˆ,  €ˆ, 1996. �. 132 254. J.B.Peclka, A.Cedola, S.Lagomarsino, S.di Fonzo, W.Jark, G.Soullie. J. Alloys Compd., 286, 313 (1999) 255. S.-H.Yang, B.S.Mun, A.W.Kay, S.-H.Kim, J.B.Kortright, J.H.Underwood, Z.Hussain, C.S.Fadley. Surf. Sci., 461, L557 (2000) 256. D.P.Woodruff. Prog. Surf. Sci., 57, 1 (1998) 257. A.Lessmann, S.Brennan, B.Materlik, M.Schuster, H.Riechert. Rev. Sci. Instrum., 66, 1428 (1995) 258. Y.Qian, N.C.Sturchio, R.P.Chiarello, P.F.Lyman, T.-L.Lee, M.J.Bedzyk. Science, 265, 1555 (1994) 259. M.Sugiyama, S.Maeyama, M.Oshima. Rev. Sci. Instrum., 67, 3182 (1996) 260. A.Shi, P.L.Cowan, S.Southworth, L.Fotiadis, C.Hor, B.Harlin, F.Moore, E.Dobisz, H.Dietrich. J. Appl. Phys., 73, 8161 (1993) 261. M.V.Kovalchuk, A.Y.Kazimirov, S.I.Zheludeva. Nucl. Instrum. Methods Phys. Res. B, 101, 435 (1995) 262. J.Als-Nielsen. In Handbook of Synchrotron Radiation. Vol. 3. (Eds G.B.Brown, D.E.Moncton). North-Holland, Amsterdam, 1991. P. 471 263. H.Aiginger, P.Wobrauschek, C.Streli. Anal. Sci., 11, 471 (1995) 264. R.S.Hockett. Mater. Res. Soc. Symp. Proc., 354, 377 (1995) 265. C.Streli. J. Trace Microprobe Techn., 13, 109 (1995) 266. P.Wobrauschek. J. Anal. At. Spectrom., 5, 333 (1998) 267. R.S.Hockett. Adv. X-Ray Anal., 37, 565 (1994) 268. Z.H.Ming, Y.L.Soo, S.W.Huang, Y.H.Kao, K.Stair, G.Devane, C.Choi-Feng, T.Chang, L.P.Fu, G.D.Gilliland, J.Klem, M.Haùch. Mater. Res. Soc. Symp. Proc., 417, 325 (1996) 269. F.D'Acapito, F.Zontone. J. Appl. Crystallogr., 32, 234 (1999) 270. G.Capiccio, M.Leoni, P.Scardi, V.Sessa, M.L.Terranova. Adv. Cryst. Growth, 203, 285 (1996) 271. J.Reiche, D.Janietz, T.Baberka, D.Hofmann, L.Brehmer. Nucl. Instrum. Methods Phys. Res. B, 97, 416 (1995) 272. D.Jacqemain, S.G.Wolf, F.Leveiller, M.Deutsch, K.Kjaer, J.Als-Nielsen, M.Lanav, L.Leiserowitz. Angew. Chem., Int. Ed. Engl., 31, 130 (1992) 273. J.F.Legrand, A.Renault, O.Konovalov, E.Chevigny, J.Als-Nielsen, G.Grubel, B.Berge. Thin Solid Films, 248, 95 (1994) « 274. C.Bohm, F.Leveiller, D.Jacquemain, H.Mohwald, K.Kjaer, J.Als-Nielsen, I.Weissbuch, L.Leiserowitz. Langmuir, 10, 830 (1994) 275. I.Weissbuch, I.Kuzmenko, M.Berfeld, L.Leiserowitz, M.Lahav. J. Phys. Org. Chem., 13, 426 (2000) 276. A.Naudon, D.Thiaudiere. J. Appl. Crystallogr., 30, 822 (1997) 277. P.Borthen, H.H.Strehblow. J. Phys. IV, Colloq., 7, C2-187 (1997) 278. K.Tani, T.Nanjyo, S.Masui, H.Saisho. J. Synchr. Radiat., 5, 1141 (1998) 279. J.Kowai, S.Hayakawa, Y.Kitajima, Y.Gohshi. Anal. Sci., 11, 519 (1995) 280. E.Dartyge, A.Fontaine, F.Baudelet, C.Giorgetti, S.Pizzini, H.Tolentiono. J. Phys. I, Gen. Phys. Stat. Phys. Condens. Matter Cross.-Discipl. Phys., 2, 1233 (1992) 281. G.P.Hastie, J.Johnstone, K.J.Roberts, D.Fisches. J. Cryst. Growth, 166, 67 (1996) 282. H.Ade, B.Hsiao. Science, 262, 1427 (1993) 283. N.V.Bausk, S.B.Erenburg, N.F.Yudanov, L.N.Mazalov. J. Phys. IV, Colloq., 7, C2-1167 (1997) 284. ï.ã.∤© , �.â.ƒª°º†¤ªŠ, ï.´.„¯ˆº¶€, .ï.ˆ¾¶€. 褪º. ©¢ª¤ ¢. ¼¸¹¸¸, 36, 932 (1995) 285. V.A.Shuvaeva, K.Yanagi, K.Sakaue, H.Terauchi. J. Synchr. Radiat., 6, 367 (1999) 286. N.V.Bausk, L.N.Mazalov, A.I.Rykov, V.F.Vratskikh, V.P.Predtechenskii, Yu.S.Varlamov. Bull. Mater. Sci., 14, 865 (1991)


462 287. ï.ã.∤© , .ï.ˆ¾¶€, á.ê.’� ¶€, ã.´.㪈¢© ¸¼, î.’.‘ª°¯¢°‚°º© ¸±, „.å.㈪¾ˆ¹¶€. 褪º. ©¢ª¤ ¢. ¼¸¹¸¸, 33, 88 (1992) 288. G.Schutz, W.Wagner, W.Wilhelm, P.Kienele, R.Zeller, R.Frahm, « G.Materlik. Phys. Rev. Lett., 58, 737 (1987) 289. �.ä.�€‚¸ºº¸ ¶€. ²©·°¼¸ ½¸». ºˆ¤ , 42, 869 (1999) 290. J.B.Kortright, D.D.Awschalom, J.Stohr, S.D.Bader, Y.U.Idzerda, S.S.Parkin, I.K.Schuller, H.-C.Siegmann. J. Magn. Magn. Mater., 207, 7 (1999) 291. J.Stohr. J. Electron Spectrosc. Relat. Phenom., 75, 253 (1995) « 292. J. Stohr, R.Nakajima. J. Phys. IV, Colloq., 7, C2-47 (1997) « 293. E.Dartyge, F.Baudelet, C.Giorgetti, S.Odin. J. Alloys Compd., 277, 526 (1998) 294. G.A.Sawatzky, F.M.F.De Groot, S.Altieri, N.B.Brookes, S.L.Hulbert, J.B.Goedkoop, B.Sinkovic, E.Shekel, L.H.Tjeng, R.Hesper, E.Pellegrin. J. Electron Spectrosc. Relat. Phenom., 92, 11 (1998) 295. L.Alagna, T.Prosperi, S.Turchini, J.Goulon, A.Rogalev, C.Goulon-Ginet, C.R.Natoli, R.D.Peacock, B.Stewart. Phys. Rev. Lett., 80, 4799 (1998) 296. J.Goulon, C.Goulon-Ginet, A.Rogalev, V.Gotte, C.Malgrange, C.Brouder, C.R.Natoli. J. Chem. Phys., 108, 6394 (1998) 297. B.Stewart. J. Phys. IV, Colloq., 4, C9-179 (1994) 298. J.C.Sutherland. In Circular Dichroism: Conformational Analysis of Biomolecules. (Ed. G.D.Fasman). Plenum, New York, 1996. P. 599 299. G.Schutz, D.Ahlers. J. Phys. IV, Colloq., 7, C2-59 (1997) « 300. G.Shutz, P.Fischer, K.Attenkofer, M.Knulle, D.Ahlers, S.Stahler, « C.Detlefs, H.Ebert, F.M.F.De Groot. J. Appl. Phys., 76, 6453 (1994) 301. S.Imada, S.Suda. J. Electron Spectrosc. Relat. Phenom., 92, 1 (1998) 302. G.Schonhense. J. Phys., Condens. Matter, 11, 9517 (1999) 303. ã.á.â°¾ò ¶€, ã.æ.幸¢ª¸°º ¶. ²©·°¼¸ ½¸». ºˆ¤ , 158, 679 (1989) 304. ã.æ.幸¢ª¸°º ¶. ã  º. ‘ª¶†¾°¹� ©¶€ª°¹°ºº¶±  ª¸©¢ˆ¾¾¶Šªˆ½¸¸. �¢ª¤ ¢¤ªº�° ¸©©¾°¯¶€ˆº¸ò  ª¸©¢ˆ¾¾¶€.  ˆ,  €ˆ, 1996. �. 84 305. A.Kirfel, A.Petcov. Acta Crystallogr., Sect. A, 48, 247 (1992) 306. A.Kirfel, W.Morgenroth. Acta Crystallogr., Sect. A, 49, 35 (1993) 307. J.Baruchel, M.Shlenker. In X-Rays and Neutrons Dynamical Diffraction Theory and Applications. (Ed. A.Authier). Plenum, New York, 1996. P. 187 308. M.Sacchi. Surf. Rev. Lett., 7, 175 (2000) 309. J.Als-Nielsen, G.Materlik. Phys. Today, 48, 34 (1995) 310. J.V.Smith. Analyst, 120, 1231 (1995) 311. A.R.Gerson, P.J.Halfpenny, S.Pizzini, R.Ristic, K.J.Roberts, D.B.Sheen, J.N.Sherwood. X-Ray Charact. Mater., 105 (1999) 312. S.K.Sinha. Jpn. J. Appl. Phys., Pt. 1, 38, 1 (1999) 313. B.S.Clausen. Catal. Today, 39, 293 (1998) 314. J.M.Thomas, G.N.Greaves. Catal. Lett., 20, 337 (1993) 315. B.S.Clausen, H.Topsoe, R.Frahm. Adv. Catal., 42, 315 (1998) 316. N.Binsted, M.J.Pack, M.G.Weller, J.Evans. J. Am. Chem. Soc., 118, 10200 (1996) 317. W.Bras, G.R.Mant, G.E.Derbyshire, D.Bouch, J.Sheldon, J.Dingis, J.Ryan. Rev. Sci. Instrum., 66, 1314 (1995) 318. S.Husnain, K.O.Hodgson. J. Synchr. Radiat., 6, 852 (1999) 319. H.Oyanagi, I.Owen, M.Grimshaw, P.Head, M.Martini, M.Saito. Rev. Sci. Instrum., 66, 5477 (1995) 320. I.Haita, H.Takahashi, S.Matuoka, Y.Amemiya. Thermochim. Acta, 253, 149 (1995) 321. O.M.Wilkin, N.A.Young. J. Synchr. Radiat., 6, 204 (1999) 322. M.Richter. J. Electron Spectrosc. Relat. Phenom., 76, 21 (1995) 323. J-E.Rubensson, J.Luning, M.Neeb, B.Kuepper, S.Eisebitt, « W.Eberhardt. Phys. Rev. Lett., 76, 3919 (1996) 324. R.A.Bartynski, E.Jensen, S.L.Hulbert, C.-C.Kao. Prog. Surf. Sci., 53, 155 (1996) 325. S.Vinton, S.P.Harte, G.Charlton, V.R.Dhanak, G.Thornton, W.B.Westerveld, J.van Eck, J.van de Weg, H.G.M.Heideman, J.B.West. Chem. Phys. Lett., 252, 107 (1996) 326. H.Biehl, K.J.Boyle, D.M.Smith, R.P.Tuckett. Chem. Phys., 214, 357 (1997) 327. U.Becker. J. Electron Spectrosc. Relat. Phenom., 112, 47 (2000)

‰.ã.餆ˆ€¸‚¤©, „..�¾¶€¶¼¶¢¶€ 328. A.R.Ravishankara, S.Solomon, A.A.Turnipseed, R.F.Warren. Science, 259, 194 (1993) 329. R.J.Nelmes, M.I.McMahon. J. Synchr. Radiat., 1, 69 (1994) 330. H.K.Mao, R.J.Hemley. High Press. Res., 14, 257 (1996) 331. M.I.McMahon. Mater. Sci. Forum, 278, 1 (1998) 332. K.Brister. Rev. Sci. Instrum., 68, 1629 (1997) ' 333. J.P.Itie, A.Polian, D.Martinez, V.Briois, A.Di Cicco, A.Filipponi, A.San Miguel. J. Phys. IV, Colloq., 7, C2-31 (1997) ' 334. A.San Miguel, J.P.Itie, A.Polian. Physica B, 208 û 209, 506 (1995) 335. S.K.Saxena, L.S.Dubovinsky, P.Haggvist, Y.Cerenius, G.Shen, H.K.Mao. Science, 269, 1703 (1995) 336. M.Hanúand, U.Schwarz, K.Syassen, K.Takemura. Phys. Rev. Lett., 82, 1197 (1999) 337. K.J.Kingma, H.K.Mao, R.J.Hemley. High Press. Res., 14, 363 (1996) 338. W.Utsumi, T.Muzutani, O.Shimomura, T.Taniguchi, S.Nakano, N.Nishiyama, K.Funakoshi. In International Union Crystallography XVIII Congress and General Assembly. (Collected Abstracts). Glasgow, 1999. P08.CC.007 339. Ch.-S.Yoo. In International Union Crystallography XVIII Congress and General Assembly. (Collected Abstracts). Glasgow, 1999. M08.OC.004 340. P.Loubeyre, R.Le Toullec, D.Hausermann, M.Hanúand, « R.J.Hemley, H.K.Mao, L.W.Finger. Nature (London), 383, 702 (1996) 341. D.Huusermann. Phys. Scr., 66, 102 (1996) « 342. M.S.Somayazulu, L.W.Finger, R.J.Hemley, H.K.Mao. Science, 271, 1400 (1996) 343. L.J.Parker, T.Aton, J.B.Badding. Science, 273, 95 (1996) 344. S.H.Tolbert, A.P.Alivisatos. Ann. Rev. Phys. Chem., 46, 595 (1995) 345. R.J.Nelmes, M.I.McMahon. In Semiconductors and Semimetals. (Eds T.Suski, W.Paul). Academic Press, New York, 1998. P. 34 346. H.Wilhelm, C.Cros, E.Reny, G.Demazlau, M.Hanúand. J. Mater. Chem., 8, 2729 (1998) 347. Y.Soldo, J.L.Hazemann, D.Aberdam, M.Inui, K.Tamura, D.Raoux, E.Pernot, J.F.Jal, J.Dupuy-Philon. Phys. Rev. B, 57, 258 (1998) ' 348. D.Andrault, J.Peryronnean, F.Farges, J.P.Itie. Physica B, 208 û 209, 327 (1995) ' 349. C.Roux, D.M.Adams, J.P.Itie, A.Polian, D.N.Hendrickson, M.Verdaguer. Inorg. Chem., 35, 2846 (1996) 350. D.M.Pfund, J.C.Darab, J.L.Fulton, Y.Ma. J. Phys. Chem., 98, 13102 (1994) 351. J.L.Fulton, D.M.Pfund, S.L.Wallen, M.Newville, E.A.Stern, Y.J.Ma. J. Chem. Phys., 105, 2161 (1996) 352. S.L.Wallen, B.J.Palmer, D.M.Pfund, J.L.Fulton, M.Newville, Y.J.Ma, E.A.Stern. J. Phys. Chem. A, 101, 9632 (1997) 353. K.Jannsen, F.C.Adams, M.L.Rivers, K.W.Jones. Scanning Microsc. Suppl., 7, 191 (1997) 354. G.E.Ice. X-Ray Spectrom., 26, 315 (1997) 355. A.Iida. X-Ray Spectrom., 26, 359 (1997) 356. J. Electron Spectrosc. Relat. Phenom. (Special Issue), 84 (1 û 3) (1997) 357. C.Riekel. Rep. Prog. Phys., 63, 233 (2000) 358. P.Chevallier, P.Populus, A.Firsov. X-Ray Spectrom., 28, 348 (1999) 359. G.Margaritondo. Jpn. J. Appl. Phys., Pt. 1, 38, 8 (1999) 360. M.Kiskinova, M.Marsi, E.Di Fabrizio, M.Gentili. Surf. Rev. Lett., 6, 265 (1999) 361. N.Fukumoto, Y.Kobayashi, M.Kurahashi, I.Kojima. Spectrochim. Acta B, 54, 91 (1999) 362. T.Ungar, J.I.Langford, R.J.Cernik, G.Voros, R.Púaumer, G.Oszlanyi, I.Kovacs. Mater. Sci. Eng. A, 247, 81 (1998) 363. A.A.MacDowell, C.H.Chang, H.Padmore, J.R.Patel, A.C.Thompson. Mater. Res. Soc., 524, 55 (1998) 364. A.Snigirev, I.Snigireva, C.Riekel, A.Miller, L.Wess. J. Phys. IV, Colloq., 3, 443 (1993) 365. A.Rindby, P.Voglis, P.Engstrom. Biomaterials, 19, 2083 (1998) « 366. C.Riekel, A.Cedola, F.Heidelbach, K.Wagner. Macromolecules, 30, 1033 (1997) 367. S.M.Kuznetsov, I.I.Snigireva, A.A.Snigirev, P.Engstrom, C.Riekel. « Appl. Phys. Lett., 65, 1 (1994)


²©·°¼¸ ¼¸¹¸¸ 70 (5) 2001 368. J.D.Denlinger, E.Rotenberg, T.Warwick, G.Visser, J.Nordgren, J.-H.Guo, P.Skytt, S.D.Kevan, K.S.McCutcheon, D.Shuh, J.Bucher, N.Edelstein, J.G.Tobin, B.P.Tonner. Rev. Sci. Instrum., 66, 1342 (1995) 369. C.Riekel, P.Engstrom, C.Martin. J. Macromol. Sci. Phys., 37, 587 « (1998) 370. M.Muller, C.Czihak, G.Vogl, P.Fratzl, H.Schober, C.Riekel. « Macromolecules, 31, 3953 (1998) 371. Z.H.Cai, W.Rodrigues, P.Ilinsky, D.Legnini, B.Lai, W.Yun, E.D.Isaacs, K.E.Lutterford, J.Grenko, R.Glew, S.Stutz, J.Vandenberg, R.People, M.A.Alam, M.Hybertsen, L.J.P.Ketelsen. Appl. Phys. Lett., 75, 100 (1999) 372. E.D.Isaacs, M.Marcus, G.Aeppli, X.D.Xiang, X.D.Sun, P.Schultz, H.K.Kao, G.S.Kargile, R.Haushalter. Appl. Phys. Lett., 73, 1820 (1998) 373. In Situ Synchrotron Radiation Research in Material Science. (Eds P.A.Montano, H.Oyanagi). MRS Bulletin. (Special Issue), 24 (1) (1999) 374. P.Norby. Mater. Sci. Forum, 228, 147 (1996) 375. D.O'Hare, J.S.O.Evans, R.J.Francis, P.S.Halasyamoni, P.Norby, J.Hanson. Microp. Mesopor. Mater., 21, 253 (1998) 376. T.Shido, R.Prins. Curr. Opin. Solid State Mater. Sci., 3, 330 (1998) 377. J.M.Corker, F.Levebrre, C.Lecuyer, V.Dufaud, F.Quignard, A.Choplin, J.Evans, J.-M.Bisset. Science, 271, 966 (1996) 378. G.Sankar, J.M.Thomas, D.Waller. J. Phys. Chem., 96, 7485 (1992) 379. N.Yoshida, T.Matsushita, S.Soigo, H.Oyanagi, H.Hashimoto, M.Fujimoto. J. Chem. Soc., Chem. Commun., 354 (1990) 380. L.M.Murphy, B.R.Dobson, M.Neu, C.A.Ramsdale, R.W.Strange, S.S.Hasnain. J. Synchr. Radiat., 2, 64 (1995) 381. A.Dent, J.Evans, M.Newton, J.Corke, J.A.Russell, M.B.Abdul-Rahman, S.Fiddy, R.Mathew, R.Farrow, G.Salvini, P.Atkinson. J. Synchr. Radiat., 6, 381 (1999) 382. M.Hagelstein, A.Fontaine, J.Goulon. Jpn. J. Appl. Phys., Pt. 1, 32, 240 (1993) 383. S.G.Nikitenko, B.P.Tolochko, A.N.Aleshaev, G.N.Kulipanov, S.I.Mishnev. J. Phys. IV, Colloq., 7, C2-549 (1997) 384. Y.Inada, H.Hayashi, S.Funahashi, M.Nomura. Rev. Sci. Instrum., 68, 2973 (1997) 385. P.D.Cobden, B.E.Nieuwenhuys, F.Esch, A.Baraldi, G.Vomelli, S.Lizzit, M.Kiskinova. Surf. Sci., 416, 264 (1998) 386. J.Harford, J.Squire. Rep. Prog. Phys., 60, 1723 (1997) 387. A.A.Vazina, P.M.Sergienko, A.M.Gadzhiyev, V.M.Aulchenko, Yu.V.Usov, M.V.Yasenev. Nucl. Instrum. Methods Phys. Res. A, 359, 220 (1995)

463 388. K.Moffat. Acta Crystallogr., Sect. A, 54, 833 (1998) 389. K.Moffat. Trans. Am. Crystallogr. Assoc., 34, 39 (2000) 390. V.Srajer, T.-Y.Teng, T.Ursby, C.Pradervand, Z.Ren, S.Adachi, W.Schieldkamp, D.Bourgeois, M.Wulff, K.Moffat. Science, 274, 1726 (1996) 391. M.Wulff, F.Schotte, G.Naylor, D.Bourgeois, K.Moffat, G.A.Mourou. Nucl. Instrum. Methods Phys. Res. A, 398, 69 (1997) ¹ 392. T.-Y.Teng, V.Crajer, K.Moffat. Biochemistry, 36, 12087 (1997) 393. V.V.Mikhailin. Nucl. Instrum. Methods Phys. Res. A, 448, 461 (2000) 394. Proceedings of the 5th International Conference on Synchrotron Radiation Instrumentation. (Eds J.B.Hasting, S.L.Hulbert, G.P.Williams). Rev. Sci. Instrum., 66 (2) (1995) 395. Proceedings of the 10th National Synchrotron Radiation Conference. (SR-94). (Eds G.N.Kulipanov, V.F.Pindyurin). Nucl. Instrum. Methods Phys. Res. A, 359 (1 û 2), 1995 396. Proceedings of the 8th International Conference on X-Ray Absorption Fine Structure. (Eds K.Baberschke, D.Arvanitis). Physica B, 208 û 209 (1995) 397. Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure. (Eds J.Goulon, C.Goulon-Ginet, N.B.Brookes). J. Phys. IV, Colloq., 7 (C2) (1997) 398. Proceedings of the 11th National Synchrotron Radiation Conference (SR-96). (Ed. G.N.Kulipanov). Nucl. Instrum. Methods Phys. Res. A, 405 (2 û 3) (1998) 399. Proceedings of the 6th International Conference on Synchrotron Radiation Instrumentation. (Eds S.S.Hasnain, R.Helliwell, H.Kamitsubo). J. Synchr. Radiat., 5 (3) (1998) 400. Proceedings of the 6th International Symposium ôFrontiers in Synchrotron Radiation Spectroscopyó. (Eds A.Kakizaki, A.Kotani). J. Electron Spectrosc. Relat. Phenom., 92 (1 û 3) (1998) 401. Proceedings of the 4th Inthernational School and Symposium on Synchrotron Radiation in Natural Science. (Eds W.Pazkowicz, E.Sobczak). J. Alloys Compd., 286 (1998) 402. Proceedings of the 10th International Conference on X-Ray Absorption Fine Structure. (Eds S.S.Hasnain, R.Helliwell, H.Kamitsubo). J. Synchr. Radiat., 6 (3) 1999 403. Proceedings of the 12th National Synchrotron Radiation Conference. (SR-98). (Ed. G.N.Kulipanov). Nucl. Instrum. Methods Phys. Res. A, 448 (1 û 2) (2000) 404. Proceedings of the 11th International Conference on X-Ray Absorption Fine Structure. (Eds S.S.Hasnain, H.Kamitsubo, D.M.Mills). J. Synchr. Radiat., 8 (2) (2001) 405. J.L.Jordan-Sweet. IBM J. Res. Dev., 44, 457 (2000)

X-RAY SYNCHROTRON RADIATION IN PHYSICOCHEMICAL STUDIES Ya.V.Zubavichus, Yu.L.Slovokhotov A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences 28, Ul. Vavilova, 117813 Moscow, Russian Federation, Fax +7(095)135 û 5085 Modern modiùcations of the conventional X-ray methods of physicochemical analysis (X-ray and electron spectroscopy, difraction methods, etc.) and new combined techniques using X-ray synchrotron radiation are considered. Unique characteristics of synchrotron radiation are noted, namely, continuous spectrum, exceptionally high intensity, polarisation, coherence, pulse nature, etc. The key trends in the use of combined methods in chemistry and materials science including studies of substances under extreme conditions, study of rapid processes, studies of objects with high space resolution are discussed. The achievements in the applications of synchrotron radiation are illustrated by examples from various ùelds of chemistry and related sciences. Bibliography ü 405 references. Received 1st February 2001