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19 April 2024 |
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Anisotropic Quantum Transport in Layered High--$T_c$ Cuprates | | S.N. Evangelou Shi-Jie Xiong Ding-Yu Xing
; E.N. Economou
; | | Date: |
22 Aug 1997 | | Subject: | Disordered Systems and Neural Networks | cond-mat.dis-nn | | Affiliation: | 1,3) Shi-Jie Xiong Ding-Yu Xing and E.N. Economou ( Department of Physics, University of Ioannina,Greece Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, China Foundation for Research and Technology | | Abstract: | A random lattice model with dilute interlayer bonds of density $p$ is proposed to describe the underdoped high--$T_c$ cuprates. We show analytically via an appropriate perturbation expansion and verify independently by numerical scaling of the conductance that for any finite $p$ the states remain extended in all directions, despite the presence of interlayer disorder. However, the obtained electronic transport is highly anisotropic with violent conductance fluctuations occuring in the layering direction, which can be responsible for the experimentally observed metallic "in-plane" and semiconducting "out-of-plane" resistivity of the cuprates. | | Source: | arXiv, cond-mat/9708184 | | Services: | Forum | Review | PDF | Favorites | |
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