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The Magnetoelectric Effect in Ferroelectric/Ferromagnetic Film Hybrid Systems with Easy-Plane and Easy-Axis Anisotropy
Technical Physics ( IF 1.1 ) Pub Date : 2020-11-18 , DOI: 10.1134/s1063784220110158
N. S. Gusev , M. V. Sapozhnikov , O. G. Udalov , I. Yu. Pashen’kin , P. A. Yunin

Abstract

The striction magnetoelectric effect in hybrid systems consisting of a magnetic film applied on the surface of a ferroelectric has been investigated. Films with planar (galfenol, nickel) and perpendicular (Co/Pt multilayer structures) magnetic anisotropy have been used. A PMN–PT crystal has served as ferroelectric. The hysteresis loops of magnetic films have been studied as a function of voltage applied to the ferroelectric crystal. A voltage applied to films with easy-plane anisotropy causes the anisotropy axis to turn in the plane of the sample. In structures with easy-axis anisotropy, the hysteresis shape changes, which, according to numerical simulation, may be associated with a change in interfacial Dzyaloshinsky–Moriya interaction at the Co/Pt interface.



中文翻译:

具有易平面和易轴各向异性的铁电/铁磁薄膜混合系统中的磁电效应

摘要

已经研究了在混合系统中的狭窄磁电效应,该混合系统由施加在铁电体表面的磁性膜组成。已使用具有平面(galfenol,镍)和垂直(Co / Pt多层结构)磁各向异性的薄膜。PMN–PT晶体已成为铁电体。已经研究了磁性膜的磁滞回线作为施加到铁电晶体上的电压的函数。施加到具有易平面各向异性的薄膜上的电压会使各向异性轴在样品平面内旋转。在具有易轴各向异性的结构中,根据数值模拟,磁滞形状会发生变化,这可能与Co / Pt界面处界面Dzyaloshinsky-Moriya相互作用的变化有关。

更新日期:2020-11-18
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