Experimental and Theoretical Constraints of Bipolaronic Superconductivity in High Tc Materials: An Impossibility

B. K. Chakraverty, J. Ranninger, and D. Feinberg
Phys. Rev. Lett. 81, 433 – Published 13 July 1998
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Abstract

The bipolaronic scenario for high Tc superconductivity is critically examined. The underlying assumption that at low temperatures all the charge carriers exist in the form of itinerant bipolarons is shown to be incompatible on theoretical and experimental grounds. Superfluidity of such bipolarons cannot give the values of Tc nor explain the fermionic nature of the quasiparticles observed in the cuprates.

  • Received 8 December 1997

DOI:https://doi.org/10.1103/PhysRevLett.81.433

©1998 American Physical Society

Authors & Affiliations

B. K. Chakraverty1, J. Ranninger2, and D. Feinberg1

  • 1Laboratoire d'Etudes des Propriétés Electroniques des Solides, Laboratoire Associé á l'Université Joseph Fourier, Centre National de la Recherche Scientifique, B.P. 166, 38042, Grenoble Cédex 9, France
  • 2Centre de Recherches sur les Très Basses Températures, Laboratoire Associé á l'Université Joseph Fourier, Centre National de la Recherche Scientifique, B.P. 166, 38042, Grenoble Cédex 9, France

Comments & Replies

Chakraverty et al. Reply:

B. K. Chakraverty, J. Ranninger, and D. Feinberg
Phys. Rev. Lett. 82, 2621 (1999)

Comment on “Experimental and Theoretical Constraints of Bipolaronic Superconductivity in High Tc Materials: An Impossibility”

A. S. Alexandrov
Phys. Rev. Lett. 82, 2620 (1999)

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Vol. 81, Iss. 2 — 13 July 1998

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