Observation and theory of new line in far-infrared absorption in antiferromagnetic FeF2

J. Woods Halley, I. Silvera

Research output: Contribution to journalArticlepeer-review

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 languageEnglish (US)
Pages (from-to)1226-1227
Number of pages2
JournalJournal of Applied Physics
Volume37
Issue number3
DOIs
StatePublished - 1966

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