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Stress Induced Enhancement of Magnetization Reversal Process of DyFeCo Films With Perpendicular Magnetization

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3 Author(s)
S. Nakagawa ; Dept. of Phys. Electron., Tokyo Inst. of Technol. ; M. Yamada ; N. Tokuriki

A method to control magnetization reversal in magnetic films with perpendicular magnetic anisotropy was demonstrated in this study. Alloys of rare earth-transition metals (RE-TM) with their extremely large anomalous Hall coefficient and relatively large magnetostriction constants were suitable to observe the stress induced anisotropy using anomalous Hall effect. Stress applied to the RE-TM thin films significantly reduced the perpendicular coercivity and nucleation field of the film in comparison with that of the film in stress-free condition. Dyx(Fe90Co10)1-x thin films revealed large Hall voltage and remarkable change in the coercivity under the mechanical tensile stress

Published in:

IEEE Transactions on Magnetics  (Volume:42 ,  Issue: 11 )