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Correlation between growth stress and microstructure in CoCrPt alloy thin film with nanogranular structure
No full textWe have investigated in situ stress evolution for (Co82Cr18)(87)Pt-13 /Ti alloy film in an ultrahigh vacuum (UHV) chamber equipped with a highly sensitive optical deflection-detecting system. A very large compressive stress is developed at the very beginning of CoCrPt alloy deposition, and it turns into a smaller tensile stress at about 5-Angstrom CoCrPt thickness. After 20-Angstrom CoCrPt deposition, the tensile stress again turns back to compressive stress. The microstructural studies at the each transition thickness region revealed that microstructural changes play a major role for the observed stress variation at the initial growth stage. (C) 2004 Elsevier B.V. All rights reserved.This work was supported bythe Korean
Ministryof Science and Technologythrough the
Creative Research Initiatives Project
Saturation magnetostriction coefficient measurement of CoCrPt alloy thin films using a highly sensitive optical deflection-detecting system
No full textWe report on the saturation magnetostriction coefficient of 500 angstrom (Co82Cr18)(100-x)Pt-x and x angstrom (Co82Cr18)(79)Pt-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 -7.23 X 10(-6) to 8.5 X 10(-6) and from -8 X 10(-6) to 14 X 10(-6) with increasing the Pt concentration from 0 to 35 at. % and the film thickness from 400 to 800 angstrom, 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. (c) 2005 American Institute of Physics
Direct Time-Resolved Observation of Domain Dynamics in CoCr-based Alloy Films with In-plane Magnetic Anisotropy
No full textTransition from Symmetric to aSymmetric Local Coercivity Distribution in CoCrPt Alloy Films
No full textCorrelation between Growth Stress and Microstructure in CoCrPt Alloy Thin Film with Nanogranular Structures
No full textMagnetization Reversal Study of CoCrPt Alloy Thin Films on a Nanogranular Length Scale using Magnetic Transmission Soft X-Ray Microscopy
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Magnetization Reversal Study of CoCrPt Alloy Thin Films on a Nanogranular Length Scale using Magnetic Transmission Soft X-Ray Microscopy
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