Ni–Ge Nanostructures: Role of the Interface and the Magnetic Properties
Full article
| Common |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Translated
|
| Journal |
Physics of the Solid State
ISSN: 1063-7834
, E-ISSN: 1090-6460
|
| Output data |
Year: 2012,
Volume: 54,
Number: 7,
Pages: 1494-1500
Pages count
: 7
DOI:
10.1134/S1063783412070177
|
| Tags |
Layer Film; Ferromagnetic Layer; Cooling Mode; Nickel Layer; Faraday Effect |
| Authors |
Grebenʹkova Yu.E.
1
,
Chernichenko A.V.
1
,
Velikanov D.A.
1,2
,
Turpanov I.A.
1
,
Mukhamedzhanov E.K.
3
,
Zubavichus Y.V.
3
,
Cherkov A.K.
4
,
Patrin G.S.
1,2
|
| Affiliations |
| 1 |
Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50–38, Krasnoyarsk, 660036 Russia
|
| 2 |
Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk, 660041 Russia
|
| 3 |
National Research Centre “Kurchatov Institute,” pl. Akademika Kurchatova 1, Moscow, 123182 Russia
|
| 4 |
Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Lavrentieva 5, Novosibirsk, 630090 Russia
|
|
Funding (3)
|
1
|
The Ministry of Education and Science of the Russian Federation
|
16.552.11.7003
|
|
2
|
Russian Foundation for Basic Research
|
11-02-00675 (01201167274)
|
|
3
|
Russian Foundation for Basic Research
|
11-02-00972 (01201164211)
|
The surface morphology and local structure of layers in the Ni–Ge and Ge–Ni–Ge–Ni–Ge films have been investigated. It has been shown that the surface of the films follows the roughnesses of the substrate surface, which have characteristic dimensions of 2–4 nm in height and ~100 nm in plane. It has been found that an interface with the depth ranging from 9 to 18 nm is formed at the boundaries between the Ni and Ge layers. The data obtained have been used to explain the specific features of the magnetic properties of the studied films, such as the asymmetry of hysteresis loops at low temperatures and the difference between the temperature dependences of the magnetization of the samples for two cooling modes: in a magnetic field and without a magnetic field.