9811270.pdf (116.42 kB)
D-wave Bose-Einstein condensation and the London penetration depth in superconducting cuprates
preprint
posted on 2006-04-04, 12:51 authored by A.S. Alexandrov, Richard GilesWe 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 bytesPublication date
1998Notes
This is a pre-print. It is also available at: http://arxiv.org/abs/cond-mat/9811270.Language
- en