Edge states of zigzag boron nitride nanoribbons

Fawei Zheng; Ken Ichi Sasaki; Riichiro Saito; Wenhui Duan; Bing Lin Gu

doi:10.1143/JPSJ.78.074713

Edge states of zigzag boron nitride nanoribbons

Fawei Zheng, Ken Ichi Sasaki, Riichiro Saito^*, Wenhui Duan, Bing Lin Gu

^*此作品的通讯作者

科研成果: 期刊稿件 › 文章 › 同行评审

31 引用（Scopus）

摘要

Tight-binding (TB) calculation for zigzag boron nitride nanoribbons (ZBNNRs) is presented. The TB parameters are obtained so as to reproduce density functional calculation. The analytical expressions of boron (nitrogen) edge states that lie near the bottom (top) of conductance (valence) bands are given. The modification of the potential near the edge is found to be important in explaining the small energy dispersion of the edge states. The energy band gap of ZBNNR decreases with increasing ribbon width, which is explained by the edge potential. We also discuss the half metallicity for ZBNNR by considering the Hubbard-type Coulomb interaction.

源语言	英语
文章编号	074713
期刊	Journal of the Physical Society of Japan
卷	78
期	7
DOI	https://doi.org/10.1143/JPSJ.78.074713
出版状态	已出版 - 7月 2009
已对外发布	是

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Zheng, F., Sasaki, K. I., Saito, R., Duan, W., & Gu, B. L. (2009). Edge states of zigzag boron nitride nanoribbons. Journal of the Physical Society of Japan, 78(7), 文章 074713. https://doi.org/10.1143/JPSJ.78.074713

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abstract = "Tight-binding (TB) calculation for zigzag boron nitride nanoribbons (ZBNNRs) is presented. The TB parameters are obtained so as to reproduce density functional calculation. The analytical expressions of boron (nitrogen) edge states that lie near the bottom (top) of conductance (valence) bands are given. The modification of the potential near the edge is found to be important in explaining the small energy dispersion of the edge states. The energy band gap of ZBNNR decreases with increasing ribbon width, which is explained by the edge potential. We also discuss the half metallicity for ZBNNR by considering the Hubbard-type Coulomb interaction.",

keywords = "Boron nitride, Edge states, Half metallicity, Snanoribbons",

author = "Fawei Zheng and Sasaki, {Ken Ichi} and Riichiro Saito and Wenhui Duan and Gu, {Bing Lin}",

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T1 - Edge states of zigzag boron nitride nanoribbons

AU - Zheng, Fawei

AU - Sasaki, Ken Ichi

AU - Saito, Riichiro

AU - Duan, Wenhui

AU - Gu, Bing Lin

PY - 2009/7

Y1 - 2009/7

N2 - Tight-binding (TB) calculation for zigzag boron nitride nanoribbons (ZBNNRs) is presented. The TB parameters are obtained so as to reproduce density functional calculation. The analytical expressions of boron (nitrogen) edge states that lie near the bottom (top) of conductance (valence) bands are given. The modification of the potential near the edge is found to be important in explaining the small energy dispersion of the edge states. The energy band gap of ZBNNR decreases with increasing ribbon width, which is explained by the edge potential. We also discuss the half metallicity for ZBNNR by considering the Hubbard-type Coulomb interaction.

AB - Tight-binding (TB) calculation for zigzag boron nitride nanoribbons (ZBNNRs) is presented. The TB parameters are obtained so as to reproduce density functional calculation. The analytical expressions of boron (nitrogen) edge states that lie near the bottom (top) of conductance (valence) bands are given. The modification of the potential near the edge is found to be important in explaining the small energy dispersion of the edge states. The energy band gap of ZBNNR decreases with increasing ribbon width, which is explained by the edge potential. We also discuss the half metallicity for ZBNNR by considering the Hubbard-type Coulomb interaction.

KW - Boron nitride

KW - Edge states

KW - Half metallicity

KW - Snanoribbons

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DO - 10.1143/JPSJ.78.074713

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SN - 0031-9015

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JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

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Edge states of zigzag boron nitride nanoribbons

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