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Quasiparticles and c-axis coherent hopping in high T_c superconductors by Cornaglia, P. S.; Hallberg, K.; Balseiro, C. A. is a scholarly article available to read on EtoBox.

What is Quasiparticles and c-axis coherent hopping in high T_c superconductors about?

We study the problem of the low-energy quasiparticle spectrum of the extended t-J model and analyze the coherent hopping between weakly coupled planes described by this model. Starting with a two-band model describing the Cu-O planes and the unoccupied bands associated to the metallic atoms located in between the planes, we obtain effective hopping matrix elements describing the c-axis charge transfer. A computational study of these processes shows an anomalously large charge anisotropy for doping concentrations around and below the optimal doping.

Author

Cornaglia, P. S.; Hallberg, K.; Balseiro, C. A.

Published

2001

Language

EN