Title :
Stress Induced Enhancement of Magnetization Reversal Process of DyFeCo Films With Perpendicular Magnetization
Author :
Nakagawa, S. ; Yamada, M. ; Tokuriki, N.
Author_Institution :
Dept. of Phys. Electron., Tokyo Inst. of Technol.
Abstract :
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
Keywords :
Hall effect; coercive force; dysprosium compounds; internal stresses; iron compounds; magnetic storage; magnetic thin films; magnetisation reversal; magnetostriction; perpendicular magnetic anisotropy; DyFeCo; ferromagnetic Hall effect; magnetic films; magnetic random access memory; magnetization reversal; magnetoelastic energy; magnetostriction constants; mechanical tensile stress; perpendicular magnetic anisotropy; rare earth-transition metals; Anisotropic magnetoresistance; Coercive force; Hall effect; Iron; Magnetic films; Magnetization reversal; Magnetostriction; Perpendicular magnetic anisotropy; Stress; Transistors; Ferromagnetic Hall effect; magnetic random access memory (MRAM); magnetoelastic energy; rare earth–transition metals (RE-TM); stress-induced magnetic anisotropy;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.884247