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Condensed Matter > Superconductivity

Title: Pre-formed Cooper pairs and Bose-Einstein condensation in cuprate superconductors

Abstract: A two-dimensional (2D) assembly of noninteracting, temperature-dependent, pre-formed Cooper pairs in chemical/thermal equilibrium with unpaired fermions is examined in a binary boson-fermion statistical model as the Bose-Einstein condensation (BEC) singularity temperature $T_{c}$ is approached from above. Compared with BCS theory (which is {\it not} a BEC theory) substantially higher $T_{c}$'s are obtained without any adjustable parameters, that fall roughly within the range of empirical $T_{c}$'s for quasi-2D cuprate superconductors.
Comments: 4 pages
Subjects: Superconductivity (cond-mat.supr-con)
Journal reference: J. of Phys. and Chem. of Solids 63, 2365-2368 (2002)
Cite as: arXiv:cond-mat/0110391v1 [cond-mat.supr-con]

Submission history

From: Miguel A. Solis [view email]
[v1] Thu, 18 Oct 2001 23:34:08 GMT (9kb)