中国物理B ›› 2009, Vol. 18 ›› Issue (6): 2498-2501.doi: 10.1088/1674-1056/18/6/063

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Transport properties of a random binary side-coupled chain

卢秀娟1, 胡冬生2, 张永梅2, 朱陈平2   

  1. (1)College of International Education, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; (2)Department of Applied Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China
  • 收稿日期:2008-11-03 修回日期:2008-12-03 出版日期:2009-06-20 发布日期:2009-06-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 70471084 and 10775071).

Transport properties of a random binary side-coupled chain

Hu Dong-Sheng(胡冬生)a)†, Lu Xiu-Juan(卢秀娟)b), Zhang Yong-Mei(张永梅)a), and Zhu Chen-Ping(朱陈平)a)   

  1. a Department of Applied Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China; b College of International Education, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2008-11-03 Revised:2008-12-03 Online:2009-06-20 Published:2009-06-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 70471084 and 10775071).

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摘要： We investigate the transport properties of a random binary side-coupled chain by using the transfer-matrix technique. It is found that there are resonant states in the systems with short-range correlations between the host chain atoms and the side-coupled atoms. The analytic expressions for the extended states are also presented in the systems with the side couplings between like atoms and between unlike atoms.

关键词: localization in disordered structures, extended states, resonance

Abstract: We investigate the transport properties of a random binary side-coupled chain by using the transfer-matrix technique. It is found that there are resonant states in the systems with short-range correlations between the host chain atoms and the side-coupled atoms. The analytic expressions for the extended states are also presented in the systems with the side couplings between like atoms and between unlike atoms.

Key words: localization in disordered structures, extended states, resonance

中图分类号:  (Localized modes)

  • 63.20.Pw
71.55.Jv (Disordered structures; amorphous and glassy solids)