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The effect of the peak position of the Eliashberg function on Tc and the isotope effect

✍ Scribed by Fu-sui Liu; Yechorn Chen (Hua Chen); Wan-feng Chen


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
238 KB
Volume
144
Category
Article
ISSN
0375-9601

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The purpose of this paper is to explain the unusual isotope coefficients of cuprates by considering the influence of a pseudogap and phononic and electronic interactions in weak-coupling limit. Exact analytic expressions of the isotope exponent (a) for the s-and d-wave pairing symmetry are derived.