TITLE

L1[sub 0] ordering of off-stoichiometric FePt (001) thin films at reduced temperature

AUTHOR(S)
Seki, T.; Shima, T.; Takanashi, K.; Takahashi, Y.; Matsubara, E.; Hono, K.
PUB. DATE
April 2003
SOURCE
Applied Physics Letters;4/14/2003, Vol. 82 Issue 15, p2461
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have investigated the effect of extensive compositional change on the structure and magnetic properties of FePt sputtered films deposited at a substrate temperature of 300 °C. The Fe concentration in the FePt films was varied from 19 to 68 at. %. In the x-ray diffraction patterns, (001) and (003) superlattice peaks were observed at a Pt-rich composition range, indicating the formation of a L1[sub 0] ordered structure. A L1[sub 0] ordered Fe[sub 38]Pt[sub 62] film exhibited perpendicular magnetization with a large uniaxial magnetic anisotropy of K[sub u] = 1.8 × 10[sup 7] erg/cm³.
ACCESSION #
9465100

 

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