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Spin fluctuation damping of magnons in itinerant electron magnets

โœ Scribed by A.Z. Solontsov; A.N. Vasil'ev


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
397 KB
Volume
177
Category
Article
ISSN
0375-9601

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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