Laboratory of semiconductor surfaces spectroscopy . ... Under his leadership new effects in the field of low temperature surface science were investigated: novel surface atomic structures on cleavage planes of germanium crystals, new surface reconstructions induced by low temperature adsorption of silver and copper atoms onto clean semiconducting surfaces (Si, Ge, A3B5), new superstructural states on Nd-Ce-Cu-O, La-Sr-Cu-O, and Bi-2212 surfaces. ... Copyright ISSP RAS, LSSS, 2006-2007 . ...