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Zero-point spin fluctuations in itinerant magnetism

โœ Scribed by A.Z. Solontsov; D. Wagner


Book ID
113319391
Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
205 KB
Volume
140-144
Category
Article
ISSN
0304-8853

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Spin-charge fluctuations in itinerant he
โœ Wolfram Brenig ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 696 KB

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