| Electronic properties of one-dimensional systems with long-range correlated binary potentials | |
|---|---|
| 學年 | 100 |
| 學期 | 1 |
| 出版（發表）日期 | 2011-08-01 |
| 作品名稱 | Electronic properties of one-dimensional systems with long-range correlated binary potentials |
| 作品名稱（其他語言） | |
| 著者 | Gong, Long-yan; Tong, Pei-qing; Zhou, Zi-cong |
| 單位 | 淡江大學物理學系 |
| 出版者 | Institute of Physics Publishing (IOP) |
| 著錄名稱、卷期、頁數 | Chinese Physics B 20(8), pp.087102 |
| 摘要 | We study numerically the electronic properties of one-dimensional systems with long-range correlated binary potentials. The potentials are mapped from binary sequences with a power-law power spectrum over the entire frequency range, which is characterized by correlation exponent β. We find the localization length ξ increases with β. At system sizes N → ∞, there are no extended states. However, there exists a transition at a threshold βc. When β > βc, we obtain ξ > 0. On the other hand, at finite system sizes, ξ ≥ N may happen at certain β, which makes the system "metallic", and the upper-bound system size N*(β) is given. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 1674-1056 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 是 |
| 國別 | GBR |
| 公開徵稿 | |
| 出版型式 | 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/73492 ) |
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