We report new results for the elastic constants studied in Faraday and Cotton-Mouton geometry in Tb3Ga5O12 (TGG), a frustrated magnetic substance with strong spin-phonon interaction and remarkable crystal-electric-field (CEF) effects. We analyze the data in the framework of CEF theory taking into account the individual surroundings of the six inequivalent Tb3+-ion positions. This theory describes both, elastic constants in the magnetic field and as a function of temperature. Moreover we present sound-attenuation data for the acoustic Cotton-Mouton effect in TGG.
@article{arxiv.1312.3774,
title = {Magneto-elastic Effects in $\text{Tb}_{3}\text{Ga}_{5}\text{O}_{12}$},
author = {U. Löw and S. Zherlitsyn and K. Araki and M. Akatsu and Y. Nemoto and T. Goto and U. Zeitler and B. Lüthi},
journal= {arXiv preprint arXiv:1312.3774},
year = {2013}
}