Journal of Siberian Federal University. Mathematics & Physics / Solid-state Synthesis of Cobalt Germanides in Epitaxial Ge/α-Co(001) and Ge/β-Co(110) Nanofilms

Full text (.pdf)
Issue
Journal of Siberian Federal University. Mathematics & Physics. 2010 3 (1)
Authors
Bykova, Liudmila E.; Myagkov, Victor G.; Turpanov, Igor A.; Abylkalykova, Risa B.; Bondarenko, Galina N.; Lee, Liudmila A.; Kobyakov, Alexander V.
Contact information
Bykova, Liudmila E. : Kirensky Institute of Physics, SB RAS; Akademgorodok 50, Krasnoyarsk, 660036, Russia, e-mail: ; Myagkov, Victor G. : Kirensky Institute of Physics, SB RAS; Akademgorodok 50, Krasnoyarsk, 660036, Russia,; Turpanov, Igor A. : Kirensky Institute of Physics, SB RAS; Akademgorodok 50, Krasnoyarsk, 660036, Russia,; Abylkalykova, Risa B. : D. Serikbayev East Kazakhstan State Technical University; Protazanova 69, Ust-Kamenogorsk, 070004, Kazakhstan,; Bondarenko, Galina N. : Institute of Chemistry and Chemical Technology SB RAS; K.Marksa 42, Krasnoyarsk, 660049, Russia,; Lee, Liudmila A. : Siberian Federal University, Krasnoyarsk; Svobodny 79, Krasnoyarsk, 660041, Russia,; Kobyakov, Alexander V. : Siberian Federal University, Krasnoyarsk; Svobodny 79, Krasnoyarsk, 660041, Russia,
Keywords
epitaxial growth; nanofilms; solid-state synthesis; Co-Ge system; cobalt germanides
Abstract

The experimental results of a study of solid-state synthesis of cobalt germanides in epitaxial Ge/α-Co(001) and Ge/β-Co(110) nanofilms are presented. For both polymorphic modifications of cobalt, it is demonstrated that the Co5Ge7 phase occurs at ~275◦C. When the annealing temperature increases to ~300◦C, the CoGe2 phase forms, which sharply reduces the electric resistance and magnetic characteristics of the samples. The order of the formation of phases and the temperatures at which the phases are formed are not changed based on the polymorphic modification of cobalt.

Pages
48-53
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/1606