Electric field control of chiral magnetic domains in the high-temperature multiferroic CuO

被引：41

作者：

Babkevich, P. ^{[1
]}

Poole, A. ^{[2
]}

Johnson, R. D. ^{[1
,3
]}

Roessli, B. ^{[2
]}

Prabhakaran, D. ^{[1
]}

Boothroyd, A. T. ^{[1
]}

机构：

[1] Univ Oxford, Dept Phys, Oxford OX1 3PU, England

[2] Paul Scherrer Inst, Neutron Scattering Lab, CH-5232 Villigen, Switzerland

[3] Rutherford Appleton Lab, ISIS Facil, STFC, Didcot OX11 0QX, Oxon, England

来源：

PHYSICAL REVIEW B | 2012年 / 85卷 / 13期

基金：

英国工程与自然科学研究理事会;

关键词：

CUPRIC OXIDE; SCATTERING; ANTIFERROMAGNETS; EXCITATIONS; NEUTRONS;

D O I：

10.1103/PhysRevB.85.134428

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied the high-temperature multiferroic cupric oxide using polarized neutron diffraction as a function of temperature and applied electric field. We find that the chiral domain population can be varied using an external electric field applied along the b axis. With the aid of representation analysis, we deduce the incommensurate magnetic structure in the multiferroic phase. We conclude that the origin of the magnetoelectric coupling is consistent with recently proposed models which are based on the inverse Dzyaloshinskii-Moriya interaction.

引用

页数：6

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