Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
89 (2001), S. 810-812
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We report results on the magnetic properties of nanocomposite films of the form (Co86Cr14)xPt1−x:C, which were prepared by magnetron sputtering and subsequent annealing. X-ray diffraction shows that these films consist of CoPtCr grains with the face-centered-tetragonal structure embedded in an amorphous C matrix. Magnetic properties such as coercivity (Hc), remanence ratio (S), and coercive squareness (S*) are strongly dependent on the Pt and C composition and annealing temperatures. Compared with previously reported CoPt:C films with a equiatomic Co and Pt ratio, lower exchange coupling and higher S and S* at the same C concentration were obtained. Hc values ranging from 2 to 10 kOe and S close to 1 were achieved for film thicknesses down to 10 nm. These features make CoPtCr:C nanocomposite films very attractive for next-generation high-density recording. © 2001 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1331643
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