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arXiv · 1304.1355

Ho and Fe magnetic ordering in multiferroic HoFe3(BO3)O4

D. K. Shukla·S. Francoual·A. Skaugen·M. v. Zimmermann·H. C. Walker·L. N. Bezmaternykh·I. A. Gudim·V. L. Temerov·J. Strempfer
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Abstract

Resonant and non-resonant X-ray scattering studies on HoFe3(BO3)O4 reveal competing magnetic ordering of Ho and Fe moments. Temperature and X-ray polarization dependent measurements employed at the Ho L3 edge directly reveal a spiral spin order of the induced Ho moments in the ab-plane propagating along the c-axis, a screw-type magnetic structure. At about 22.5 K the Fe spins are observed to rotate within the basal plane inducing spontaneous electric polarization, P. Components of P in the basal plane and along the c-axis can be scaled with the separated magnetic X-ray scattering intensities of the Fe and Ho magnetic sublattices, respectively.

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D. K. Shukla, S. Francoual, A. Skaugen, M. v. Zimmermann, H. C. Walker, L. N. Bezmaternykh, I. A. Gudim, V. L. Temerov, J. Strempfer. 2013-04-04. Ho and Fe magnetic ordering in multiferroic HoFe3(BO3)O4. https://doi.org/10.1103/physrevb.86.224421

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