Electric-field control of the chiral magnetism of multiferroic MnWO4 as seen via polarized neutron diffraction

被引：59

作者：

Finger, T. ^{[1
]}

Senff, D. ^{[1
]}

Schmalzl, K. ^{[2
]}

Schmidt, W. ^{[2
]}

Regnault, L. P. ^{[3
]}

Becker, P. ^{[4
]}

Bohaty, L. ^{[4
]}

Braden, M. ^{[1
]}

机构：

[1] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany

[2] Forschungszentrum Julich, Inst Festkorperforsch, JCNS, ILL, F-38042 Grenoble, France

[3] CEA, Inst Nanosci & Cryogenie, DRFMC SPSMS MDN, F-38054 Grenoble 9, France

[4] Univ Cologne, Inst Kristallog, D-50674 Cologne, Germany

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.81.054430

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The chiral components in the magnetic order in multiferroic MnWO4 have been studied by neutron diffraction using spherical polarization analysis as a function of temperature and of external electric field. We show that sufficiently close to the ferroelectric transition at T = 12.3 K it is possible to switch the chiral component by applying moderate electric fields at constant temperature. Full hysteresis cycles can be observed which indicate strong pinning of the magnetic order. MnWO4, furthermore, exhibits a magnetoelectric memory effect across heating into the paramagnetic and paraelectric phase.

引用

页数：5

共 26 条

[1]

[Anonymous], 2006, Neutron Scattering from Magnetic Materials

[2] Ferroelectricity in the cycloidal spiral magnetic phase of MnWO4 [J].