Effect of Pseudogap on the Isotope Exponent of High-Tc Superconductors
β Scribed by P. Udomsamuthirun
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 97 KB
- Volume
- 226
- Category
- Article
- ISSN
- 0370-1972
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β¦ Synopsis
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. It is found that a can fit the experimental data well and that the presence of the pseudogap increases a in the low-T c region, but has no effect in the high-T c region.
π SIMILAR VOLUMES
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