Abstract
Recent articles have suggested that the quasi-two-dimensional antiferromagnet MnPS3 may have nonreciprocal magnons, whereby magnons in a Brillouin zone corner at +q have different energies than those at -q. The magnons along the Brillouin zone boundaries were measured using neutron three-axis spectrometry, paying careful attention to the resolution function, to determine whether such nonreciprocity was present. The data show that, within the resolution, there are no significant differences between the magnons in opposite Brillouin zone corners. The findings are combined with a recently published study of MnPS3 by neutron resonant spin-echo spectroscopy and discussed within the context of the theories for nonreciprocal magnons.
| Original language | English |
|---|---|
| Article number | 024424 |
| Journal | Physical Review B |
| Volume | 103 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jan 15 2021 |
Funding
We thank the Institut Laue-Langevin for the allocation of neutron beam time, Dr. A. Piovano and Dr. A. Ivanov for their assistance with the IN8 instrument, and F. Charpenay and V. Gaignon for technical assistance. A.R.W. thanks Dr. V. Simonet for a critical reading of the manuscript and Dr. T. Ziman for stimulating discussions. S.O. was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. D.X. is supported by AFOSR MURI 2D MAGIC (Grant No. FA9550-19-1-0390).
| Funders | Funder number |
|---|---|
| Institut Laue-Langevin | |
| U.S. Department of Energy | |
| Air Force Office of Scientific Research | FA9550-19-1-0390 |
| Office of Science | |
| Basic Energy Sciences | |
| Division of Materials Sciences and Engineering |