Magnetodielectric and magnetoelastic coupling in TbFe3(BO3)(4)

U. Adem*, L. Wang, D. Fausti, W. Schottenhamel, P. H. M. van Loosdrecht, A. Vasiliev, L. N. Bezmaternykh, B. Buechner, C. Hess, R. Klingeler, B. Büchner

*Corresponding author for this work

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Abstract

We have studied the magnetodielectric and magnetoelastic coupling in TbFe3(BO3)(4) single crystals by means of capacitance, magnetostriction, and Raman spectroscopy measurements. The data reveal strong magnetic field effects on the dielectric constant and on the macroscopic sample length which are associated to long-range magnetic ordering and a field-driven metamagnetic transition. We discuss the coupling of the dielectric, structural, and magnetic order parameters and attribute the origin of the magnetodielectric coupling to phonon mode shifts according to the Lyddane-Sachs-Teller relation.

Original languageEnglish
Article number064406
Pages (from-to)064406-1-064406-5
Number of pages5
JournalPhysical Review. B: Condensed Matter and Materials Physics
Volume82
Issue number6
DOIs
Publication statusPublished - 6-Aug-2010

Keywords

  • DIELECTRIC-CONSTANTS
  • IRON
  • GDFE3(BO3)(4)
  • MULTIFERROICS
  • TEMPERATURE

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