Isotope effect in the presence of a pseudogap

Dahm T (2000)
Physical Review B 61(9): 6381-6386.

Journal Article | Published | English

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Abstract
We investigate the question of whether the unusual doping dependence of the isotope exponent observed in underdoped high-T-c superconductors might be related to another unusual phenomenon observed in these systems: the pseudogap phenomenon. Within different approximations we study the influence of a phenomenological pseudogap on the isotope exponent and fmd that it generally strongly increases the isotope exponent, in qualitative agreement with experiments on underdoped high-T-c compounds. This result is stable against strong-coupling self-energy corrections and also holds for recently proposed spin-fluctuation exchange models, if a weak additional electron-phonon coupling is considered.
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Dahm T. Isotope effect in the presence of a pseudogap. Physical Review B. 2000;61(9):6381-6386.
Dahm, T. (2000). Isotope effect in the presence of a pseudogap. Physical Review B, 61(9), 6381-6386.
Dahm, T. (2000). Isotope effect in the presence of a pseudogap. Physical Review B 61, 6381-6386.
Dahm, T., 2000. Isotope effect in the presence of a pseudogap. Physical Review B, 61(9), p 6381-6386.
T. Dahm, “Isotope effect in the presence of a pseudogap”, Physical Review B, vol. 61, 2000, pp. 6381-6386.
Dahm, T.: Isotope effect in the presence of a pseudogap. Physical Review B. 61, 6381-6386 (2000).
Dahm, Thomas. “Isotope effect in the presence of a pseudogap”. Physical Review B 61.9 (2000): 6381-6386.
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