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Phys. Rev. Lett. 109, 267202 (2012) - Magnetic Frustration, Phase Competition, and the Magnetoelectric Effect in ${\mathrm{NdFe}}_{3}({\mathrm{BO}}_{3}{)}_{4}$

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

J. E. Hamann-Borrero, S. Partzsch, S. Valencia, C. Mazzoli, J. Herrero-Martin, R. Feyerherm, E. Dudzik, C. Hess, A. Vasiliev, L. Bezmaternykh, B. Büchner, and J. Geck
Phys. Rev. Lett. 109, 267202 – Published 26 December 2012
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    Abstract

    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.

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    • Received 30 July 2012

    DOI:https://doi.org/10.1103/PhysRevLett.109.267202

    © 2012 American Physical Society

    Authors & Affiliations

    J. E. Hamann-Borrero1,*, S. Partzsch1, S. Valencia2, C. Mazzoli3,4, J. Herrero-Martin5,4, R. Feyerherm2, E. Dudzik2, C. Hess1, A. Vasiliev6, L. Bezmaternykh7, B. Büchner1,8, and J. Geck1

    • 1Leibniz Institute for Solid State and Materials Research, IFW-Dresden, 01171 Dresden, Germany
    • 2Helmholtz Zentrum Berlin, Albert Einstein Straße 15, 12489 Berlin, Germany
    • 3Politecnico di Milano e unità CNISM, piazza Leonardo Da Vinci 32, I-20133 Milano, Italy
    • 4European Synchrotron Radiation Facility (ESRF), BP 220, 38043 Grenoble, France
    • 5Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus Universitari de Bellaterra, E-08193 Bellaterra, Barcelona, Spain
    • 6Low Temperature Physics department, Faculty of Physics, Moscow State University, Moscow 119992, Russia
    • 7L.V Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 660036, Russia
    • 8Institute for Solid State Physics, Technische Universität Dresden, 01062 Dresden, Germany

    • *j.e.hamann.borrero@ifw-dresden.de

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    Vol. 109, Iss. 26 — 28 December 2012

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