Magnetic and magneto-optical properties of Ni-Ge layered films

Тип публикации: статья из журнала

Год издания: 2010

Идентификатор DOI: 10.1016/j.physe.2010.05.002

Ключевые слова: Ni-Ge layer structures, Faraday rotation, Magnetization curves, Exchange bias effect, Exchange bias effect, Faraday rotation, Magnetization curves, NiGe layer structures, Complex compositions, Exchange bias effects, Faraday rotations, Film planes, Film surfaces, Layer structures, Layer thickness, Layered films, Magnetic and magneto-optical properties, Mutual diffusion, Substrate surface, Thermal treatment, Germanium, Heat treatment, Magnetization, Magnetos, Nickel compounds, Rotation, Solids, Optical properties

Аннотация: Magnetic and magneto-optical properties of layered Ge-Ni-Ge-Ni-Ge films have been investigated with the morphology of the film surface being studied also. It is shown that the films reproduce roughness of the glass-substrate surface which is similar to the grains 2-4 nm high and 100-400 nm long in any direction within the film plane. Thermal treatment results in a decrease of the grains height and their broadening. Non-monotonous change of the Faraday rotation (FR) value due to thermal treatment has been revealed. The inverse linear FR value dependence on the intermediate Ge layer thickness has been obtained. The exchange bias effect is observed at temperatures lower than approximately 50K which was ascribed to the formation of the complex composition interface due to the Ge and Ni mutual diffusion. (C) 2010 Elsevier B.V. All rights reserved.

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Издание

Журнал: PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES

Выпуск журнала: Vol. 42, Is. 9

Номера страниц: 2301-2306

ISSN журнала: 13869477

Место издания: AMSTERDAM

Издатель: ELSEVIER SCIENCE BV

Авторы

  • Edelman I.S. (L.V. Kirensky Institute of Physics SB RAS,Akademgorodok)
  • Velikanov D.A. (L.V. Kirensky Institute of Physics SB RAS,Akademgorodok)
  • Chernichenko A.V. (L.V. Kirensky Institute of Physics SB RAS,Akademgorodok)
  • Marushchenko D.A. (L.V. Kirensky Institute of Physics SB RAS,Akademgorodok)
  • Eremin E.V. (L.V. Kirensky Institute of Physics SB RAS,Akademgorodok)
  • Turpanov I.A. (L.V. Kirensky Institute of Physics SB RAS,Akademgorodok)
  • Bondarenko G.V. (L.V. Kirensky Institute of Physics SB RAS,Akademgorodok)
  • Greben'Kova Y.E. (Siberian Federal University)
  • Patrin G.S. (Siberian Federal University)

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