Magnetic Frustration, Phase Competition, and the Magnetoelectric Effect in NdFe3(BO3)4

被引：26

作者：

Hamann-Borrero, J. E. ^{[1
]}

Partzsch, S. ^{[1
]}

Valencia, S. ^{[2
]}

Mazzoli, C. ^{[3
,4
,5
]}

Herrero-Martin, J. ^{[5
,6
]}

Feyerherm, R. ^{[2
]}

Dudzik, E. ^{[2
]}

Hess, C. ^{[1
]}

Vasiliev, A. ^{[7
]}

Bezmaternykh, L. ^{[8
]}

Buechner, B. ^{[1
,9
]}

Geck, J. ^{[1
]}

机构：

[1] IFW Dresden, Leibniz Inst Solid State & Mat Res, D-01171 Dresden, Germany

[2] Helmholtz Zentrum Berlin, D-12489 Berlin, Germany

[3] Politecn Milan, I-20133 Milan, Italy

[4] Unita CNISM, I-20133 Milan, Italy

[5] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[6] CSIC, Inst Ciencia Mat Barcelona, ICMAB, E-08193 Barcelona, Spain

[7] Moscow MV Lomonosov State Univ, Fac Phys, Low Temp Phys Dept, Moscow 119992, Russia

[8] Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia

[9] Tech Univ Dresden, Inst Solid State Phys, D-01062 Dresden, Germany

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 26期

关键词：

X-RAY-SCATTERING; POLARIZATION DEPENDENCE; EXCHANGE SCATTERING; MULTIFERROICS; BEAMLINE;

D O I：

10.1103/PhysRevLett.109.267202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an element selective resonant magnetic x-ray scattering study of NdFe3(BO3)(4) as a function of temperature and applied magnetic field. Our measurements show that the magnetic order of the Nd sublattice is induced by the Fe spin order. When a magnetic field is applied parallel to the hexagonal basal plane, the helicoidal spin order is suppressed and a collinear ordering, where the moments are forced to align in a direction perpendicular to the applied magnetic field, is stabilized. This result excludes a noncollinear spin order as the origin of the magnetically induced electric polarization in this compound. Instead our data imply that magnetic frustration results in a phase competition, which is the origin of the magnetoelectric response. DOI: 10.1103/PhysRevLett.109.267202

引用

页数：5

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