Magnetic anisotropy of [Ni/sub 80/Fe/sub 20//Mo/Co] spin-valve films grown by MBE

Author

Hu, Y.M. ; Huang, J.C.A. ; Yu, C.C. ; Tsao, C.H.

Author_Institution

Dept. of Phys., Nat. Cheng Kung Univ., Tainan, Taiwan

Volume

33

Issue

5

fYear

1997

Firstpage

3952

Lastpage

3954

Abstract

Nigh-quality spin-valve trilayers [Ni₈₀Fe₂₀Mo/CO] have been grown on MO buffer layer on MgO (110) and MgO (100) substrates by MBE. Structure and orientation relationships were determined by XRD and RHEED. The LMOKE studies show that both CO and Ni₈₀Fe₂₀ layers exhibit uniaxial magnetic anisotropy for a trilayer grown on MgO (110). On the other hand, nearly isotropic behaviors for the CO and Ni₈₀Fe₂₀ layers have been observed for a sample grown on MgO (100). The difference of magnetic anisotropies in the two systems mainly results from the magnetocrystalline effect.

Keywords

Kerr magneto-optical effect; X-ray diffraction; cobalt; ferromagnetic materials; iron alloys; magnetic anisotropy; magnetic epitaxial layers; magnetic multilayers; molecular beam epitaxial growth; molybdenum; nickel alloys; reflection high energy electron diffraction; LMOKE studies; MBE; MgO; MgO (100) substrate; Mo buffer layer; Ni/sub 80/Fe/sub 20/-Mo-Co; Ni/sub 80/Fe/sub 20//Mo/Co; RHEED; XRD; ferromagnetic elements; high-quality spin-valve trilayers; longitudinal configuration; magnetic anisotropy; magneto-optical Kerr effect; magnetocrystalline effect; nearly isotropic behavior; orientation relationship; spin-valve films; structure; uniaxial magnetic anisotropy; Crystallization; Giant magnetoresistance; Iron; Magnetic anisotropy; Magnetic films; Magnetic separation; Molecular beam epitaxial growth; Perpendicular magnetic anisotropy; Substrates; X-ray scattering;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.619626

Filename

619626