Pseudogap effects on the c-axis charge dynamics in copper oxide materials |
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Authors: | Shiping Feng Feng Yuan Weiqiang Yu |
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Affiliation: | (1) CCAST (World Laboratory) PO Box 8730, Beijing 100080, P.R. China, CN;(2) Department of Physics, Beijing Normal University, Beijing 100875, P.R. China, CN;(3) National Laboratory of Superconductivity, Academia Sinica, Beijing 100080, P.R. China, CN |
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Abstract: | The c-axis charge dynamics of copper oxide materials in the underdoped and optimally doped regimes has been studied by considering the incoherent interlayer hopping. It is shown that the c-axis charge dynamics for the chain copper oxide materials is mainly governed by the scattering from the in-plane fluctuation, and the c-axis charge dynamics for the no-chain copper oxide materials is dominated by the scattering from the in-plane fluctuation incorporating with the interlayer disorder, which would be suppressed when the holon pseudogap opens at low temperatures and lower doping levels, leading to the crossovers to the semiconducting-like range in the c-axis resistivity and the temperature linear to the nonlinear range in the in-plane resistivity. Received 29 July 1999 and Received in final form 24 January 2000 |
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Keywords: | PACS. 71.27.+a Strongly correlated electron systems heavy fermions - 72.10.-d Theory of electronic transport scattering mechanisms - 74.72.-h High- compounds |
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