This article is cited in 9 papers

Magnetism

Hysteresis-free spin valves with a noncollinear configuration of magnetic anisotropy

L. I. Naumova, M. A. Milyaev, T. A. Chernyshova, V. V. Proglyado, I. Yu. Kamensky, V. V. Ustinov

Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg

Abstract: A noncollinear configuration of magnetic anisotropy in spin valves with strong and weak interlayer couplings has been formed by annealing and cooling in a magnetic field. The dependence of the low-field magnetoresistance hysteresis loop width on the angle between the applied magnetic field and the principal axes of the magnetic anisotropy in a spin valve has been investigated. It has been found that, only in the case of a strong ferromagnetic interlayer coupling, the formation of a noncollinear configuration of the magnetic anisotropy provides a hysteresis-free character of the magnetization reversal of the free layer with retaining the maximum magnetoresistance and magnetoresistive sensitivity.

Received: 20.12.2013

 English version: Physics of the Solid State, 2014, 56:6, 1125–1130

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