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
โฆ LIBER โฆ
Spin and orbital magnetization densities in itinerant magnets
โ Scribed by M.S.S. Brooks; O. Eriksson; L. Severin; B. Johansson
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 640 KB
- Volume
- 192
- Category
- Article
- ISSN
- 0921-4526
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