Coupled charge and spin fields in itinerant-electron paramagnets
β Scribed by A.A. Gomes; P. Lederer; C.M. Chaves
- Publisher
- Elsevier Science
- Year
- 1977
- Weight
- 258 KB
- Volume
- 91
- Category
- Article
- ISSN
- 0378-4363
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π SIMILAR VOLUMES
Using a generalized random phase approach quantum fluctuations beyond the helical mean-field states of the Hubbard model off half filling are discussed. The collective mode spectrum is shown to exhibit spin-charge mixing and is found to be strongly renormalized by coupling to low-energy incoherent p
The effect of space symmetry on magnetoplasmon charge density and spin density excitations in a weakly tunnel coupled bilayer electron system is considered. The magnetic field corresponds to the filling factor n ΒΌ 4. The energy of optic magnetoplasmon and the energy of intralayer magnetoexciton are