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Essential singularities of the specific heat and of the density of states in a model of a random harmonic chain

โœ Scribed by Walter F. Wreszinski


Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
244 KB
Volume
62
Category
Article
ISSN
0375-9601

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๐Ÿ“œ SIMILAR VOLUMES


Lifshitz singularities in the total and
โœ Th.M. Nieuwenhuizen; J.M. Luck ๐Ÿ“‚ Article ๐Ÿ“… 1987 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 969 KB

Lifshitz has shown that the density of states of random systems becomes exponentially small near the band edge. We perform a detailed computation in a one-dimensional system and calculate the periodic prefactor of this essential singularity. The analysis is extended to the wavenumberdependent spectr