Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ îðèãèíàëüíîãî äîêóìåíòà : http://phys.msu.su/upload/iblock/649/2009-00-00-khomenko.pdf Äàòà èçìåíåíèÿ: Mon Apr 20 17:07:55 2009 Äàòà èíäåêñèðîâàíèÿ: Mon Oct 1 21:06:05 2012 Êîäèðîâêà:

..







, Co-Ni-Fe Co/IrMn

01.04.11. -

-

­ 2009


. .. .

:

- , - , - ,

:

:

« »

« » 2009 ____ -501.001.70 .. : 119992, -2, , , .1, .35, - . .. .

. .. .

«____» 2009 .

-501.001.70 - ,

..

2


, , /. . , , , (), , . , / , , . Ic Hc 10 , .. . , , ( ). . () 80- [1, 2]. ­ ( ), , . , , , , .. (. [3]). c .
3


, , , . , , . ( ) . . ­ , . ,

. 1 - [4].

, , , , , . Fe-Co , Fe, - (. 1). () CoxFe1-x, 0.3100 Co50Fe50). - , ,
4


, H
EB

>Hc , H

EB

­

. Co (>80%) , . , ­ ­ , . : , Co-Ni-Fe? . /B ne ,
B

- (. 1). - - . , , - (. 1) . . Co-Ni-Fe , , . , , . , . , . , ,
5








() () () /, .. HEB. / . , , (TN), . , . (IrMn) , - ( ). . , - . Co-Ni-Fe - Co/IrMn, , , . : 1. Co-Ni-Fe , , , . Co-Ni-Fe . 2. . . 3. () /- Co/IrMn.
6


4.

/-

Co/IrMn . , , ,

, ; , , , . , : 1. Co-Ni-Fe, . , , . 2. , ,

/ IrMn , Co-, , . 3. , Co IrMn / Mo/Co/IrMn/Mo . . , , .
7




Co-Ni-Fe , . / - . : 1.

Co-Ni-Fe . 2. , . 3. Co-NiFe . 4. IrMn/Co , . 5. Co IrMn
Mo/Co/IrMn/Mo

.

, , , . ,

8


, , . . , , [1-16] : XXXV , , 2005; Moscow International Symposium of Magnetism (MISM), 25-30 June, Moscow; III Joint European Magnetic Conference, San Sebastian, 26-30 June, 2006 ; « » 2007 2008 , «» 2007 ; 52
nd

Annual Conference on

Magnetism and Magnetic Materials, Nov. 5-9, 2007, Tampa, Florida, USA; Moscow International Symposium on Magnetism, MISM 2008, June 20-25, Moscow. . , , 86 . 87 , 50 2 . , , , , . , Co-Ni-Fe / . 1.1 Co-Ni-Fe. . . . , o-Ni-Fe 1.2 / . ,
9



.




, o/IrMn . 1.3 . , , , . 2.1 () Co-Ni-Fe . , 50 , . 1.5 3 . 800 . Cu(250nm)/Cr(25nm)/SiO2(300nm)/Si- . Wenking LT87, 3-40 /2. . . () Co/IrMn 2.2. ( P~10-8 ) . , (10 ) , . . o/IrMn c: Co (5) IrMn (10 ) (Co/IrMn TS), IrMn (10 ) Co (5 ) (IrMn/Co BS).
10









.


30 Tanneal 1000 2500 1200 , . 1 , 1 , 1 0 . 2.3 () , , . , (). , « » , . Co-Ni-Fe . 2.4 2.5 Co-Ni-Fe . (XEDS) () LEO-Karl-Zeiss-1430vp, XEDS . XEDS. 10 20 . () , 0.6 . 2.6 : (), - , . BRUKER Elexsys E580 9,65 . 102. 100 . IS HK 5 , () () , :
11


EA EA 2 = 2 ( H R + Hk )( H R + Hk + 4I s )

(1a) (1)

2 = 2( H
EA R

HA R

- H k )( H
HA

HA R

- H k + 4I s )

=2f - -, =ge/(2mc)g·8.79·106(·)-1 , H HR , . CoNi-Fe . 3.1 - , - (-Fe), (Ni) (Co) . 3.2. 3.3 / . , ­ : ne = 27x+28y+26z, (2) x,y z - Co, Ni Fe , x+y + z = 1. . 2 - - (Afcc/Abcc) , n
e

Co-Ni-Fe . . ln(Afcc/Abcc) ne=27.0 -. ne, .. Fe , , . ne 27.0, .. Fe , -Fe. 3.4. (111) (200) a
fcc exp



bcc aexp , .

, .
12


( Co Ni , Fe - ) , ,

)

. , , ,

2 4 , :

)

a
a

fcc ideal

=a
=
3

fcc Co

x+a

fcc Ni

y + 3 2a
fcc Ni

bcc Fe

z (3)

bcc ideal

1 2

fcc (aCo x + a

bcc y) + a Fe z (3)


fcc exp


fcc ideal bcc bcc

a

/a

aexp /aideal

.2 ne 2

)
ne

.

3.544å,

-Co, -Ni -Fe 3.515å 2.867å. , Fe 5.9% ,

. 2 Afcc/Abcc () () () ne.

Co 8.5% Ni. ,
fcc aideal a

bcc ideal

3,61å 2,867å. .. aideal

fcc

Fe . 13


. Fe, ..
bcc fcc ne, aexp aexp ,

(3),

a a

bcc exp bcc exp

/a /a

bcc ideal bcc ideal

fcc fcc aexp / aideal (. 2 2). fcc fcc aexp / aideal ne=27.0, .. ln(Afcc/Abcc) (. 2a).

, . 3.5 Co-Ni-Fe . , Co, Ni Fe, Co-Ni-Fe , g- 2,0. g=2 , g- Co-Ni-Fe . g=2 , 4Is=16.7 21 , , . , ISa Co-Ni-Fe , :
a Co I S = I S x + I SNi y + I SFe z ,

(4)

ISX -Co, -Ni -Fe 1400, 480 1700 . 4ISa 11 17 . 4IS
obs


obs S

. . 3 , I

/ISa

,
14


. 3 ne. ne. , ( , ). . 4,

. 4 -. Co-NiFe ( ) .
15


- . -
B

1.73B Co 0.61B Ni. , - , , . Co-Ni-Fe 3.5.2. . , , . , Fe ne ne=27. - , , (3a). . , , . () , - . , . , , ..
bcc exp bcc ideal

a

/a

a

fcc exp

/a

fcc ideal



ne (. 2) ISobs/ISa (. 3). - , .

16


Co/IrMn . 4.1 - - . , , 3, - , , .. . 1. , (1) . . , , , , 4Ms>>Hr, Hr Hr0=(/)/(4Ms) Co-, H
K









HEB,



:


Hr =

2



2 s

4M

-H

EB

cos - H K cos 2

(5)

, ­ , , .. -. (. 5). , , (). . 5 , T
0 anneal=200

.
17


, . .

4000 3000 2000 1000 0 -1000 -2000 -3000

=00 =2700

=900

-200 -150 -100

-50

0

50

100

150

200

,

=1800
400 800 1200 1600 2000



. ,

.

5 -

- . : , . : 0 1800 . , Co/IrMn .
,
140 120 100 80 60 40 20 0 -20 0 50 100

H

EB

TS-

BS-
150 200 250
0

Tanneal , C
. 6 HE TS- BS . 4.2 (. 6). , TS- Co/IrMn
18






T

0 anneal=150

.

..







IrMn-



, / . Tanneal=2000 -

(HEB=133 ).
. , BS- (IrMn/Co) TS-. , (5) HEB (. 6).

4.3 HK
TS- BS- .

HK T , T
0 anneal=250

0 anneal=200

TS- BS-

.

Hr0=(/)2/(4Ms), . 4.4 . , (TN) (T), , , . TS- Tanneal=1500C, . B



, tAF, , :

TB () - TB (t TB ( )

AF

)
19

=(


t

0

) ,

(6)

AF


0 - =0 . IrMn [5] : 0=3.04 , =1.5 TB() =523 K (2500). , TB() T
B

N



. , TB TN . , . , , , (Fe3O4/CoO) , TN ( TB) [6]. , TB TN
B

. TN , , , , , , . H
EB

, ,

Mn / . H
K

/, - Ms . TS- BS- . , . [7] IrMn/NiFe , TS- HEB. , BS-, /- TS-. [8], - , JKA/K, JK ­ , A - - - K ­ -, .
20

,



kT/K



HEB.


. TS- M-

(a

IrMn

- a Co ) / a
(a

Co

= 0.058 , BS-
2 - a Mo ) / a
Mo



IrMn

= 0.16 .









-



[7]. , . , : 1. Co-Ni-Fe . 2. Co,Ni, Fe ne. , , - , , .. ne. . ne, «» , . ne, Co-Ni-Fe. 3. , -. . Co-Ni-Fe / Co/IrMn.

21


4. / , IrMn , Co-, , . ­ TN - . -. 5. , Co IrMn Mo/Co/IrMn/Mo . , Co/IrMn Mo/IrMn, IrMn.

A1. . , .., .. , .. , .. " Co-Fe-Ni ERD" // , 2006, 2, .70-73. A2. .. , .. , .. , .. " Co-Fe-Ni 500 ." // , 2006, 2, . 66-72. A3. N.G. Chechenin, E.V. Khomenko, J.Th.M. de Hosson "FCC/BCC competition and enhancement of saturation magnetization of nanocrystalline Co- Ni -Fe films" // , 2007, .85, 4, . 251-254 [JETP Letters, 2007, Vol. 85, No. 4, pp. 212­215]. A4. E.V. Khomenko, E.E. Shalyguina, N.G. Chechenin "Magnetic properties of thin Co­Fe­Ni films" // Journal of Magnetism and Magnetic Materials, 2007, v. 316, pp. 451­ 453. A5. N. G. Chechenin, E. V. Khomenko, D. I. Vainchtein, and J. Th. M. De Hosson "Nonlinearities in composition dependence of structure parameters and magnetic properties

22


of nanocrystalline fcc/bcc-mixed Co­Ni­Fe thin films" // J. Appl. Phys., 2008, v. 103, 07E738, 3pp. A6. .., . . , . . , . . " 693-697. A7. . , .. , .. , . , .. . " Co-Ni-Fe ". XXXV , , 2005, .174. A8. E.V. Khomenko, E.E. Schalyguina, Yu. A. Koksharov, N. G. Chechenin "Magnetic properties of thin Co-Fe-Ni films with thickness below 500 nm.", Moscow International Symposium of Magnetism (MISM), 25-30 June, Moscow, 2005, Book of Abstract, p.101. A9. E. V. Khomenko, E.E. Shalyguina, N.G. Chechenin "Magnetic properties of thin Co-Fe-Ni films with thickness below 500 nm", III Joint European Magnetic Conference, San Sebastian, 26-30 June, 2006 . Book of Abstracts. P.- R009. A10. N.G. Chechenin, E. Khomenko, D. Vainshtein and J. De Hosson "Nonlinearities in composition dependence of structure parameters and magnetic properties of nanocrystalline fcc/bcc-mixed Co-Ni-Fe thin films", 52nd Annual Conference on Magnetism and Magnetic Materials, Nov. 5-9, 2007, Tampa, Florida, USA, Book of Abstracts, p. HF-12. A11. .. , .. , .. , .. , .. , .. . " Co-Ni-Fe", « », 2007, , . 94, - . 12. .. , .. " 13. .. Co-Ni-Fe", / « », 2007, , . 94, - . " Co-Fe-Ni ", «», , 2007 . 14. .. , .. , .. , .. , .. " 23





IrMn/Co







" // , 2008, . 88, 8, c.


",





«

»,

2008,

, .94, - . A15. E.V.Khomenko, N.G.Chechenin, P.N.Chernykh, A.Goikhman, A.V.Zenkevich "FMR study of F/AF structures for spintronics devices", Moscow International Symposium on Magnetism, MISM 2008, June 20-25, Moscow, Book of Abstracts, Moscow, 2008, p.500. A16. V.A. Andrianov, N.G. Chechenin, V.P. Gorkov, E.V. Khomenko, N.I. Rohlov "Conversion electron Moessbauer spectroscopy of soft magnetic films FeCoNi", Moscow International Symposium on Magnetism, MISM 2008, June 20-25, Moscow, Abstracts, Moscow, 2008, p.771. 1 M. N. Baibich, J. M. Broto, A. Fert, F. Nguyen van Dau, F. Petroff, P. Etienne, G. Creuzet, A. Friederich, and J. Chazelas "Giant Magnetoresistance of (001)Fe/(001)Cr Magnetic Superlattices" // Phys. Rev. Lett., 1988, v. 61, p. 2472. 2 G. Binasch, P. Grunberg, F. Saurenbach, and W. Zinn."Enhanced Magnetoresistance in Layered Magnetic Structures with Antiferromagnetic Interlayer Exchange" // Phys. Rev., 1989, B 39, No. 7, p. 4828. 3. . . " " // , 2002, 172, 12, c. 1458. 4. S. Chikazumi "Physics of Ferromagnetism", Oxford University Press, Oxford (1997) . " . " . ., ., 1987. 5. T. Ambrose, C.L. Chien "Finite-size scaling in thin antiferromagnetic CoO layers" // J. Appl. Phys., 1996, v. 79, p. 5920. 6. A. J. Devasahayam, P. J. Sides, and M. H. Kryder "Magnetic, temperature, and corrosion properties of the NiFe/IrMn exchange couple" // J. Appl. Phys., 1998, v. 83, p. 7216. 7. J.C. Ro, Y.S. Choi, S.J. Suh, H.J. Lee "Effect of Microstrucuture Anistropy in Mn-Ir/NiFe Exchange-Biased Multialyer with Various Stacking Structure" // IEEE.Trans. Magn., 1999, v. 35, no.5, pp.3925-3927. 8. T. Lin, C. Tsang, R. E. Fontana, J. K. Howard "Exchange-coupled NiFe/FeMn, NiFe/NiMn and NiO/NiFe films for stabilization of magnetoresistive sensors" // IEEE. Trans. Magn., 1995, v. 31, no.6, pp.2585-2587.
24

Book of