Magnetization property of Tb/Co multilayered films

Author

Nawate, M. ; Morikawa, T. ; Tsunashima, S. ; Uchiyama, S.

Author_Institution

Dept. of Electr. Eng., Nagoya Univ., Japan

Volume

26

Issue

5

fYear

1990

fDate

9/1/1990 12:00:00 AM

Firstpage

2739

Lastpage

2741

Abstract

Multilayered films composed of rather thick Tb and Co layers, ranging from 50 Å to 150 Å, showed a change of magnetization process at low temperature (around 120 K), as reflected in the magnetization curve. The coercivity becomes very small and the saturation magnetization is very hard. Tb and Co moments in these multilayers are thought to be in the macroscopically ferrimagnetic state, being parallel to the same type moment and antiparallel with respect to the other. The behaviour of the Tb moment is dominant in the magnetization process. The multilayered films also showed exchange anisotropy at low temperature

Keywords

Auger effect; X-ray diffraction examination of materials; cobalt; coercive force; ferrimagnetic properties of substances; magnetic anisotropy; magnetic moments; magnetisation; spectrochemical analysis; sputtered coatings; terbium; 50 to 150 angstroms; Auger electron spectra; RF magnetron sputtering; Tb-Co multilayered films; X-ray diffraction; chemical analysis; coercivity; exchange anisotropy; macroscopically ferrimagnetic state; magnetic moments; magnetization process; saturation magnetization; vacuum evaporation system; vibrating sample magnetometer; Anisotropic magnetoresistance; Coercive force; Ferrimagnetic films; Ferrimagnetic materials; Magnetic multilayers; Magnetic properties; Magnetization processes; Optical films; Saturation magnetization; Temperature distribution;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.104856

Filename

104856