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D-wave Bose-Einstein condensation and the London penetration depth in superconducting cuprates

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preprint
posted on 2006-04-04, 12:51 authored by A.S. Alexandrov, Richard Giles
We show that bipolaron formation leads to a d-wave Bose-Einstein condensate in cuprates. It is the bipolaron energy dispersion rather than a particular pairing interaction which is responsible for the d-wave symmetry. The unusual low-temperature dependence of the magnetic field penetration depth in cuprates is explained by the localisation of bosons in the random potential. The temperature dependence of the penetration depth is linear with positive or negative slope depending on the random field profile.

History

School

  • Science

Department

  • Physics

Pages

119216 bytes

Publication date

1998

Notes

This is a pre-print. It is also available at: http://arxiv.org/abs/cond-mat/9811270.

Language

  • en

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