Terahertz optical activity near crystal field transitions of Tm3+ ions in magnetoelectric alumoborates

A. M. Kuzmenko, V. Yu. Ivanov, S. V. Garnov +5

Crystal field (CF) excitations in the ground multiplet ${}^3{H}_6$ of Tm${}^{3+}$ ions were investigated using terahertz transmission spectra of magnetoelectric TmAl${}_3$(BO${}_3$)${}_4$ and…