Magnetodielectric and magnetoelastic coupling in TbFe3(BO3)4

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 asso...

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Bibliographic Details
Main Authors:	Adem, Umut, Wang, Liran, Fausti, Daniele, Schottenhamel, Wolf, van Loosdrecht, Paul H. M, Vasiliev, Alexander, Bezmaternykh, Leonard N, Büchner, Bernd, Hess, Christian, Klingeler, Rüdiger
Format:	Journal Article
Language:	English
Published:	19-07-2010
Subjects:	Physics - Materials Science
Online Access:	Get full text
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Summary:	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 (LST) relation.
DOI:	10.48550/arxiv.1007.3291