Magnetoelectricity and magnetostriction due to the rare-earth moment in TmAl3 ( BO3 ) 4

R. P. Chaudhury, B. Lorenz, Y. Y. Sun, L. N. Bezmaternykh, V. L. Temerov, C. W. Chu

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34 Citations (Scopus)

Abstract

The magnetic properties, the magnetostriction, and the magnetoelectric effect in the d -electron free rare-earth aluminum borate TmAl3 ( BO3 ) 4 are investigated between room temperature and 2 K. The magnetic susceptibility reveals a strong anisotropy with the hexagonal c axis as the hard magnetic axis. Magnetostriction measurements show a large effect of an in-plane field reducing both the a -axis and c -axis lattice parameters. The magnetoelectric polarization change in a and c directions reaches up to 300 μC/ m2 at 70 kOe with the field applied along the a axis. The magnetoelectric polarization is proportional to the lattice contraction in magnetic field. The results of this investigation prove the existence of a significant coupling between the rare-earth magnetic moment and the lattice in R Al3 ( BO3 ) 4 compounds (R=rare earth). They further show that the rare-earth moment itself will generate a large magnetoelectric effect which makes it easier to study and to understand the origin of the magnetoelectric interaction in this class of materials.

Original languageEnglish
Article number220402
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume81
Issue number22
DOIs
Publication statusPublished - 2010 Jun 2

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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