Temperature dependent intensity in the optical absorption spectrum of ferromagnetic K2CrCl4
- 28 December 1976
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 9 (24) , 4497-4502
- https://doi.org/10.1088/0022-3719/9/24/018
Abstract
Using the spin-wave spectrum of a two-dimensional ferromagnet with spins lying in the basal plane, the variation in the intensity of exciton-magnon combination bands in the visible absorption spectrum of the ionic ferromagnet K2CrCl4 (Tc approximately 65K) is quantitatively explained. The near-neighbour exchange integral of 3.5 cm-1 taken from the series-expansion fit to the high-temperature susceptibility of Gregson et al. (1975) gives a good fit to the intensity of the 15900 cm-1 band from 4 to about 15K.Keywords
This publication has 11 references indexed in Scilit:
- Temperature variation of exciton-magnon absorption bands in metamagnetic transition-metal dihalidesJournal of Physics C: Solid State Physics, 1976
- Neutron scattering measurement of spin-wave dispersion in Rb2CrCl4: a two-dimensional easy-plane ferromagnetJournal of Physics C: Solid State Physics, 1976
- Magnetic susceptibility and magnetization of the ionic ferromagnets dipotassium, dirubidium, and dicaesium tetrachlorochromate(II)J. Chem. Soc., Dalton Trans., 1975
- Neutron diffraction study of the crystal and magnetic structure of the ionic ferromagnet Cs2CrCl4Solid State Communications, 1974
- Low-Temperature Behavior of the Planar Heisenberg FerromagnetPhysical Review B, 1973
- Optical Properties of FerromagneticCrPhysical Review Letters, 1973
- Temperature Dependence of the Intensity of Magnon Sidebands in Cubic Antiferromagnetic Manganese CompoundsProgress of Theoretical Physics Supplement, 1970
- The quadratic-layer antiferromagnetJournal of Physics and Chemistry of Solids, 1970
- The Effects of Exchange Interactions in the Spectra of Octahedral Manganese. II. CompoundsJournal of the Physics Society Japan, 1966
- Über die Systeme Alkalimetallchlorid/Chrom(II)‐chloridZeitschrift für anorganische und allgemeine Chemie, 1964