Epitaxial Co/sub 80/Pt/sub 20/ films with in-plane uniaxial anisotropy

Autor: R. Schad, B. Xu, John A. Barnard, W. D. Doyle, J. Du, T.J. Klemmer
Rok vydání: 2001
Předmět:
Zdroj: IEEE Transactions on Magnetics. 37:1512-1514
ISSN: 1941-0069
0018-9464
DOI: 10.1109/20.950886
Popis: Uniaxial Co80Pt20 epitaxial films with in-plane anisotropy were prepared by dc sputter deposition using W/Ag templates on H-terminated Si(110) substrates. The epitaxial relationship as a function of the CoPt thickness, studied by electron and X-ray diffraction, is complex for CoPt thickness 5 nm, the epitaxial relationship was found to be CoPt(1010)[0001] || W(112)[110] || Ag(110)[001]|| Si(110)[001]. Anisotropy constants were measured using in-plane torque curves and the initial magnetization curves along the hard axis. For 10 to 20 nm thick Co80Pt20, Κ1 was found to be ~ 9 × 106 erg/cc and Κ2 was negligible.
Databáze: OpenAIRE