| Interchain coupling induced localization/delocalization in coupled one-dimensional ordered and disordered chains | |
| Zhang, Wei1; Yang, Rong2; Zhao, Yi1; Duan, Suqing1; Zhang, Ping1; Ulloa, Sergio E.3,4 | |
| 刊名 | Physical review b
 |
| 2010-06-18 | |
| 卷号 | 81期号:21页码:7 |
| ISSN号 | 1098-0121 |
| DOI | 10.1103/physrevb.81.214202 |
| 通讯作者 | Zhang, wei(zhang_wei@iapcm.ac.cn) |
| 英文摘要 | A different type of system with coupled ordered-disordered chains has given rise to considerable interest recently, as it has a variety of applications in nanostructures and biological systems such as dna molecules. we investigate the localization/delocalization of coupled one-dimensional systems composed of one disordered chain (chain i) and another ordered chain (chain ii), focusing on the interplay among the disorder, correlation, and interchain coupling. we find that for systems where chain i exhibits uncorrelated disorder, charge transport in chain i (ii) is enhanced (suppressed), as the disorder in chain i leads to the localization of all states in both chains. however, for chain i with hopping amplitude t(1) and long-range correlated disorder (with power-law spectral density and disorder strength w), we find there is a localization/delocalization transition for the case w <= 4t(1), induced by interchain coupling. for w > 4t(1), we find there is a quantum-phase transition at finite interchain coupling v(c): the interchain coupling induces appearance of two channels of extended states for v > v(c) while there is only one channel of extended states for v < v(c). |
| WOS关键词 | RANGE CORRELATED DISORDER ; ANDERSON LOCALIZATION ; SCALING THEORY ; DNA ; TRANSPORT ; SYSTEMS ; DELOCALIZATION ; SEQUENCES ; ABSENCE ; MODEL |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Condensed Matter |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000278936700001 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2176009 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Zhang, Wei |
| 作者单位 | 1.Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China 2.Natl Ctr Nanosci & Technol, Key Lab Biol Effects Nanomat & Nanosafety, Beijing 100190, Peoples R China 3.Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA 4.Ohio Univ, Nanoscale & Quantum Phenomena Inst, Athens, OH 45701 USA |
| 推荐引用方式 GB/T 7714 | Zhang, Wei,Yang, Rong,Zhao, Yi,et al. Interchain coupling induced localization/delocalization in coupled one-dimensional ordered and disordered chains[J]. Physical review b,2010,81(21):7. |
| APA | Zhang, Wei,Yang, Rong,Zhao, Yi,Duan, Suqing,Zhang, Ping,&Ulloa, Sergio E..(2010).Interchain coupling induced localization/delocalization in coupled one-dimensional ordered and disordered chains.Physical review b,81(21),7. |
| MLA | Zhang, Wei,et al."Interchain coupling induced localization/delocalization in coupled one-dimensional ordered and disordered chains".Physical review b 81.21(2010):7. |
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