Electric-field effect on coercivity distributions in FePt magneto-electric devices

被引：13

作者：

Diez, L. Herrera ^{[1
]}

Bernand-Mantel, A. ^{[1
]}

Michele, O. ^{[1
]}

Vila, L. ^{[2
]}

Warin, P. ^{[2
]}

Marty, A. ^{[2
]}

Ranno, L. ^{[1
]}

Givord, D. ^{[1
]}

机构：

[1] UJF, CNRS, Inst Neel, F-38042 Grenoble 9, France

[2] UJF, CEA, INAC, SP2M, F-38054 Grenoble, France

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 01期

关键词：

HFO2; TEMPERATURE; TRANSITION; ANISOTROPY; OXIDE;

D O I：

10.1063/1.4774382

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the contribution of stochastic thermally activated processes to the electric-field effects on coercivity in FePt. Coercive field distributions were measured under different gate voltages in solid-state field-effect structures. For low voltages, a shift in the coercive field distribution can be observed; however, it is not larger than the width of the distribution. Higher voltages are needed to obtain the splitting from the negative (zero) voltage distribution allowing for the unambiguous characterization of the electric-field effect. A virtual unipolarity in the electric-field effect has been identified as a feature introduced by the dielectric layer that disappears upon annealing. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4774382]

引用

页数：4

共 20 条

[1] Thermally activated depinning of a narrow domain wall from a single defect [J].