Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
61 (1992), S. 2726-2728
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Co1−xPtx alloys with Pt contents in the range 0.45≤x≤0.9 show sizable perpendicular magnetic anisotropy, 100% perpendicular remanence and coercivities in the range 160 kA/m. Thin films of this material are grown by electron beam evaporation onto fused silica or Si, at substrate temperatures between 150 and 350 °C. Spectroscopic investigations of the polar Kerr rotation show a significant enhancement of the Pt related UV peak. A comparison of the static signal levels R×(θk2+εk2)1/2 of Co/Pt multilayers and alloys shows an overall 50% enhancement in the case of alloys. Curie temperatures around 200 °C are observed for Co∼22Pt∼78 compositions. These properties, together with the potentially high chemical stability and ease of manufacturing make Co1−xPtx alloys very attractive materials for short wavelength magneto-optic recording.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.108074
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