Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
