Formation of (001) Texture in Fe-O Underlayered $L1_{0}$ FePt Films

Author

Gu, P.P. ; Zha, C.L. ; Ma, B. ; Wang, J.P. ; Zhang, Z.Z. ; Jin, Q.Y.

Author_Institution

Dept. of Opt. Sci. & Eng., Fudan Univ., Shanghai, China

Volume

45

Issue

10

fYear

2009

Firstpage

3594

Lastpage

3597

Abstract

L1₀ FePt thin films were deposited on an Fe-O underlayer prepared by RF bias sputtering in an oxygen atmosphere for different oxidization time. Very good (001) texture and perfect perpendicular magnetization were obtained in the FePt film on 1-nm-thick Fe-O underlayer after high temperature annealing. The (001) texture evolution was accompanied by fcc-to-fct phase transformation, and both were driven by a recrystallization process. The Fe-O underlayer not only acts as a template, but also provides a stress to help the atom migration during annealing.

Keywords

high-temperature effects; iron alloys; iron compounds; magnetic thin films; magnetic transitions; magnetisation; metallic thin films; oxidation; platinum alloys; recrystallisation; solid-state phase transformations; sputter deposition; texture; FeO; FePt; RF bias sputtering; annealing; fcc-fct phase transformation; high temperature annealing; metallic thin films; oxidization; perpendicular magnetization; recrystallization process; size 1 nm; texture; Annealing; Fe-O; FePt; underlayer;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2024321

Filename

5257346

Formation of (001) Texture in Fe-O Underlayered FePt Films

Gu, P.P. ; Zha, C.L. ; Ma, B. ; Wang, J.P. ; Zhang, Z.Z. ; Jin, Q.Y.

jour

Formation of (001) Texture in Fe-O Underlayered $L1_{0}$ FePt Films