# Magnetoelectricity and Magnetostriction due to the Rare Earth Moment in TmAl$3$BO$3$$4 - Condensed Matter > Strongly Correlated Electrons Magnetoelectricity and Magnetostriction due to the Rare Earth Moment in TmAl 3BO 3$$ 4$ - Condensed Matter > Strongly Correlated Electrons - Download this document for free, or read online. Document in PDF available to download.

Abstract: The magnetic properties, the magnetostriction, and the magnetoelectric effectin the d-electron free rare-earth aluminum borate TmAl$3$BO$3$$4 areinvestigated between room temperature and 2 K. The magnetic susceptibilityreveals a strong anisotropy with the hexagonal c-axis as the hard magneticaxis. Magnetostriction measurements show a large effect of an in-plane fieldreducing both, the a- and c-axis lattice parameters. The magnetoelectricpolarization change in a- and c-directions reaches up to 300 \muC-m^2 at 70kOe with the field applied along the a-axis. The magnetoelectric polarizationis proportional to the lattice contraction in magnetic field. The results ofthis investigation prove the existence of a significant coupling between therare earth magnetic moment and the lattice in RAl 3BO 3$$ 4$ compounds$R$ = rare earth. They further show that the rare earth moment itself willgenerate a large magnetoelectric effect which makes it easier to study and tounderstand the origin of the magnetoelectric interaction in this class ofmaterials.

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

Source: https://arxiv.org/