Abstract
We measured absorption of THz radiation in YFeO3 single crystals at a temperature of 3 K in the magnetic field up to 17 T applied in all three crystallographic directions. Two spin-wave modes were observed at the Γ point with energies 1.2 meV (9.8 cm-1) and 2.4 meV (19.3 cm-1) in zero field. From the magnetic-field dependence of mode energies, we have refined the previously proposed model [S. E. Hahn, Phys. Rev. B 89, 014420 (2014)PRBMDO1098-012110.1103/PhysRevB.89.014420] and quantified the parameters of Dzyaloshinskii-Moriya interactions and single-ion anisotropies.
| Original language | English |
|---|---|
| Article number | 174417 |
| Journal | Physical Review B |
| Volume | 98 |
| Issue number | 17 |
| DOIs | |
| State | Published - Nov 14 2018 |
Funding
We would like to thank R. K. Kremer and M. Krautloher from Max-Planck Institute for Solid State Research in Stuttgart for providing assistance with x-ray and Laue measurements. Special thanks to D. Hüvonen, J. Viirok, and L. Peedu for the help with THz measurements in Tallinn. We acknowledge support of the Estonian Ministry of Education and Research with institutional research funding IUT23-3, and the European Regional Development Fund Project No. TK134 (K.A., T.R., and U.N.). Research sponsored by the U.S. Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division (R.S.F.).