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Metal-insulator transition in two-dimensional systems with long-range correlated disorder |
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| Authors: | Wen-Sheng Liu SY Liu XL Lei |
| Affiliation: | (1) Department of Physics, Shanghai Jiaotong University, 1954 Huashan Road, Shanghai 200030, PR China, CN;(2) Department of Basic Science, Zhongyuan Institute and Technology, Zhengzhou 450007, PR China, CN |
| Abstract: | We study the localization properties of electrons in a two-dimensional model with on-site energies exhibiting long-range correlated disorder. The localization length and conductance of the system are calculated by using the finite size scaling method combined with transfer matrix technique. In the presence of long-range correlations, we find that there is a continuous line of fixed points indicating that the system undergoes a disorder driven Kosterlitz-Thouless-type metal-insulator transition. Received 6 March 2003 Published online 20 June 2003 RID="a" ID="a"e-mail: wsliu@sjtu.edu.cn |
| Keywords: | PACS 72 15 Rn Electronic conduction in metals and alloys – 71 30 +h Metal-insulator transitions and other electronic transitions – 73 20 Fz Weak or Anderson localization |
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