Compositional dependence of magnetoresistance in TbFeCo amorphous films

Author

Rahman, M.T. ; Liu, X. ; Matsumoto, Morio ; Morisako, A.

Author_Institution

Fac. of Eng., Shinshu Univ., Nagano, Japan

fYear

2005

fDate

4-8 April 2005

Firstpage

15

Lastpage

16

Abstract

Large uniaxial magnetic anisotropy enables the TbFeCo amorphous films as one of the good samples for studying its magnetotransport properties. The room temperature positive magnetoresistance (MR) in TbFeCo amorphous film has already been reported. However, the origin of the magnetoresistance is still doubtful. In this study, the effects of compositional change on the magnetotransport properties of TbFeCo films have been investigated. The origin of the magnetoresistance is also clarified. A significant effect of Tb content on the MR ratio has been observed which is believed to be due to the variation of domain wall width as a function of Tb content. The MR is attributable to the spin-dependent scattering at the domain wall.

Keywords

amorphous magnetic materials; chemical analysis; cobalt alloys; iron alloys; magnetic anisotropy; magnetic domain walls; magnetic thin films; magnetoresistance; scattering; terbium alloys; TbFeCo; TbFeCo amorphous films; composition-dependent magnetoresistance; domain wall width; magnetotransport properties; room temperature positive magnetoresistance; spin-dependent scattering; uniaxial magnetic anisotropy; Amorphous magnetic materials; Amorphous materials; Magnetic anisotropy; Magnetic domain walls; Magnetic domains; Magnetic films; Magnetic properties; Magnetoresistance; Perpendicular magnetic anisotropy; Temperature;

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.2005.1463436

Filename

1463436