Saturation magnetostriction coefficient measurement of CoCrPt alloy thin films using a highly sensitive optical deflection-detecting system
- Department of Physics and Center for Nanospinics of Spintronic Materials, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of)
We report on the saturation magnetostriction coefficient of 500 A (Co{sub 82}Cr{sub 18}){sub 100-x}Pt{sub x} and x A (Co{sub 82}Cr{sub 18}){sub 79}Pt{sub 21} alloy thin films with perpendicular magnetic anisotropy. The CoCrPt alloy films were prepared by dc magnetron sputtering and the magnetostriction coefficients were measured via a highly sensitive optical deflection-detecting system using a one-dimensional position sensitive detector. The saturation magnetostriction coefficient is increased from -7.23x10{sup -6} to 8.5x10{sup -6} and from -8x10{sup -6} to 14x10{sup -6} with increasing the Pt concentration from 0 to 35 at. % and the film thickness from 400 to 800 A, respectively. X-ray diffractometry study revealed that crystalline orientation in CoCrPt alloy film, which depends on the Pt concentration and the CoCrPt film thickness, strongly influences the evolution of saturation magnetostriction coefficient.
- OSTI ID:
- 20711675
- Journal Information:
- Journal of Applied Physics, Vol. 97, Issue 10; Conference: 49. annual conference on magnetism and magnetic materials, Jacksonville, FL (United States), 7-11 Nov 2004; Other Information: DOI: 10.1063/1.1850853; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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