Green function theory of magnon sideband shapes in antiferromagnetic crystals
- 1 December 1968
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 1 (6), 1568-1583
- https://doi.org/10.1088/0022-3719/1/6/313
Abstract
Green function methods are used to include the effects of exciton-magnon interaction in a calculation of the shapes of magnon sidebands on narrow exciton lines in antiferromagnets. The general theory is applied to RbMnF3, for which crystal numerical results are presented. It is found that good agreement with experimental results for the 6A1 to 4T1 exciton transition can be obtained if the exchange constant between a neighbouring 6A1-4T1 pair of manganese ions is about one-half of the exchange constant for a 6A1-6A1 pair.Keywords
This publication has 25 references indexed in Scilit:
- Magnon-Magnon and Exciton-Magnon Interaction Effects on Antiferromagnetic SpectraPhysical Review Letters, 1968
- Equilibrium Spin Configuration and Resonance Behavior of RbMnPhysical Review B, 1966
- A Note on the Theory of Superexchange InteractionJournal of the Physics Society Japan, 1966
- Effect of Uniaxial Stress on Magnon Sidebands in MnPhysical Review Letters, 1966
- The Effects of Exchange Interactions in the Spectra of Octahedral Manganese. II. CompoundsJournal of the Physics Society Japan, 1966
- Observation of a spin-wave sideband in the optical spectrum ofPhysical Review Letters, 1965
- Absorption of Light by Pairs of Like and Unlike Transition-Metal IonsPhysical Review Letters, 1965
- Exchange Effects in the Electronic Absorption Spectrum of Mn(II) in Perovskite FluoridesJournal of Applied Physics, 1965
- The Green function method in the theory of antiferromagnetismPhysica, 1964
- Theory of Brillouin Zones and Symmetry Properties of Wave Functions in CrystalsPhysical Review B, 1936