Magnon-Phonon Interaction Observed in Far Infrared Studies of FeCl2·2H2O and CoCl2·2H2O
- 1 March 1969
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 40 (3) , 999-1000
- https://doi.org/10.1063/1.1657819
Abstract
A study has been made of spin waves in the antiferro‐, ferri‐, and ferromagnetic phases of FeCl2·2H2O. These levels are found to interact strongly with a field independent level at 31.5 cm−1. A similar interaction is found in CoCl2·2H2O near 29.3 cm−1. This field independent level has been tentatively identified as a k=0, low‐lying optical phonon. This phonon appears to be infrared active only because of its coupling with nearby magnon levels. The experimental data for both materials is well described by a phenomenological magnon‐phonon interaction.This publication has 3 references indexed in Scilit:
- Far-Infrared Absorption in CoCl2·2H2OJournal of Applied Physics, 1968
- Theory of Magnetism in FeCl2·2H2OJournal of the Physics Society Japan, 1967
- Theory of Magnetism in CoCl2·2H2OJournal of the Physics Society Japan, 1965