Abstract
The spin waves in MnO have been studied at various temperatures from 4.2 K to the Néel temperature TN of 117 K by means of neutron inelastic scattering techniques. The dispersion curves in the [001], [111] and [111] direction have been determined. Using the spin Hamiltonian with distance dependent n.n. interaction, n.n.n. interaction and dipole-dipole interaction, the spin wave theory involving magnon-magnon interaction has been developed. It has been found that the theory interprets not only the spin wave dispersion curves at 4.2 K but also its temperature dependence up to T⁄TN=0.9. The magnon density of states has been calculated.
| Original language | English |
|---|---|
| Pages (from-to) | 112-122 |
| Number of pages | 11 |
| Journal | journal of the physical society of japan |
| Volume | 36 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 1 1974 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Kohgi, M., Ishikawa, Y., & Harada, I. (1974). Spin Waves in Manganese Monoxide. journal of the physical society of japan, 36(1), 112-122. https://doi.org/10.1143/JPSJ.36.112