Charge transport in underdoped bilayer cuprates

Details Charge transport in underdoped bilayer cuprates Charge transport in underdoped bilayer cuprates

2003-05-13

arxiv.org/abs/cond-mat/0305271v1

Phys. Rev. B67, 134504 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, Revtex, three figures are included

Scientific paper

10.1103/PhysRevB.67.134504

Within the t-J model, we study the charge transport in underdoped bilayer cuprates by considering the bilayer interaction. Although the bilayer interaction leads to the band splitting in the electronic structure, the qualitative behavior of the charge transport is the same as in the case of single layer cuprates. The conductivity spectrum shows a low-energy peak and the unusual midinfrared band. This midinfrared band is suppressed severely with increasing temperatures, while the resistivity in the heavily underdoped regime is characterized by a crossover from the high temperature metallic-like to the low temperature insulating-like behaviors, which are consistent with the experiments.

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