Magneto-optical properties of Co-based nanocomposites

Author

Gan´shina, E.A. ; Kochneva, M.Yu. ; Scherbak, F.N. ; Aimuta, K. ; Inoue, M.

Author_Institution

Fac. of Phys., Moscow State Univ., Russia

fYear

2005

fDate

4-8 April 2005

Firstpage

2077

Lastpage

2078

Abstract

The present study addresses the magneto-optical properties of Co_X(TiO₂)_1-X and Co_X(Sm₂O₃)_X thin films in as-deposited state and after annealing. The films are composed of the granular ferromagnet-insulator composites where the nanometer-sized Co are embedded in either TiO₂ or Sm₂O₃ insulating matrix. The magnetic properties of the films were measured by vibrating sample magnetometer (VSM) in magnetic field up to 20 kOe. The magneto resistance (MR) was investigated using standard four-point geometry. The magneto-optical properties were investigated in the transverse Kerr effect (TKE) geometry.

Keywords

Kerr magneto-optical effect; annealing; cobalt; enhanced magnetoresistance; ferromagnetic materials; magnetic thin films; metal-insulator boundaries; nanocomposites; samarium compounds; titanium compounds; Co_X(Sm₂O₃)_1-X; Co_X(TiO₂)_1-X; annealing; granular ferromagnet-insulator composites; insulating matrix; magneto resistance; magneto-optical properties; nanocomposites; standard four-point geometry; thin films; transverse Kerr effect geometry; vibrating sample magnetometer; Annealing; Electrical resistance measurement; Geometry; Insulation; Magnetic field measurement; Magnetic films; Magnetic properties; Magnetooptic effects; Nanocomposites; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1464477

Filename

1464477