Abstract
A many-ion spin-orbit interaction in magnetic materials is pointed out which explains the existence of a previously anomalous infrared absorption line at a frequency of 154 cm-1 in antiferromagnetic FeF2. The interaction also provides a possible explanation for the existence of a magnon sideband recently observed in the antiferromagnet MnF2. The experiments on FeF2 are described and compared with the theory.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1226-1227 |
| Number of pages | 2 |
| Journal | Journal of Applied Physics |
| Volume | 37 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1966 |