Magnetoband structures of AB-stacked zigzag nanographite ribbons

被引：7

作者：

Chang, CP ^{[1
]}

Chiu, CW

Shyu, FL

Chen, RB

Lin, MF

机构：

[1] Tainan Womens Coll Arts & Technol, Ctr Gen Educ, Tainan 701, Taiwan

[2] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

[3] Chinese Mil Acad Kaohsiung, Dept Phys, Kaohsiung 830, Taiwan

[4] Cheng Shiu Inst Technol, Dept Elect Engn, Kaohsiung 830, Taiwan

来源：

PHYSICS LETTERS A | 2002年 / 306卷 / 2-3期

关键词：

band structures; nanographite ribbons; Hofstadter butterfly;

D O I：

10.1016/S0375-9601(02)01578-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetoband structures of AB-stacked zigzag nanographite ribbons are studied by the tight-binding model. The magnetic field changes band width, energy space, and energy dispersions (the produce of Landau subbands and Landau levels). It causes many zero energy points. Such points and corresponding localized states are studied in detail. There are certain important differences between localized states and edge states. Oscillation period of Landau subbands are determined by these points. The interribbon interactions also affect magnetoband structures, such as energy dispersions, band width, oscillation period of Landau subbands, and flux dependence of Hofstadter butterflies. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：137 / 143

页数：7

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