Study of magneto-electric coupling between ultra-thin Fe films and PMN-PT using X-ray magnetic circular dichroism

被引：11

作者：

Avula, S. R. V. ^{[1
]}

Heidler, J. ^{[1
]}

Dreiser, J. ^{[1
]}

Vijayakumar, J. ^{[1
]}

Howald, L. ^{[1
]}

Nolting, F. ^{[1
]}

Piamonteze, C. ^{[1
]}

机构：

[1] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland

来源：

JOURNAL OF APPLIED PHYSICS | 2018年 / 123卷 / 06期

基金：

瑞士国家科学基金会;

关键词：

MULTIFERROICS; TEMPERATURE; IRON;

D O I：

10.1063/1.5002530

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

X-ray absorption spectra and magnetic circular dichroism were measured at the Fe L-3,L- 2-edges of an iron wedge deposited on a ferroelectric substrate in the total electron yield mode. Upon switching the ferroelectric polarization from P-up to P-down, we observe a relative change in the total magnetic moment of 20% for 1.5 nm thin Fe. For 3 nm thin Fe, the relative change is within the sum rule error bar. Taking the sampling depth of the measurement method into account, this difference is compatible with a magnetic anisotropy change taking place in the first interfacial layer in contact with the ferroelectric substrate. We attribute this interfacial coupling to a charge accumulation or depletion at the interface. (C) 2018 Author(s).

引用

页数：5

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