Eur. Phys. J. B 61, 257-259 (2008)
https://doi.org/10.1140/epjb/e2008-00077-1

Magneto-elastic properties of Tb₃Ga₅O₁₂ (TGG)

¹ Graduate School of Science and Technology, Niigata University, Niigata, 950-2181, Japan
² Physikalisches Institut, Universität Frankfurt, 60054 Frankfurt, Germany

Corresponding author: ^a bm_luethi@bluewin.ch

Received: 14 January 2008
Published online: 22 February 2008

Abstract

The temperature dependence of the elastic constants in Tb₃Ga₅O₁₂ was measured and analysed with a simple crystal field model. The magneto-elastic coupling constants have been deduced from this experiment. The coupling constant g_Γ5, related to the c₄₄ mode, is anomalously large. These coupling constants are important for the interpretation of the phonon Hall effect.