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Nonlocal Exchange Interaction Removes Half-Metallicity in Graphene Nanoribbons
Abstract
Band gap studies of zigzag-edge graphene ribbons are presented. While earlier calculations at LDA level show that zigzag-edge graphene ribbons become half-metallic when cross-ribbon electric fields are applied, our calculations with hybrid density functional demonstrate that finite graphene ribbons behave as half-semiconductors. The spin-dependent band gap can be changed in a wide range, making possible many applications in spintronics.
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Citations
Cites
Two-dimensional gas of massless Dirac fermions in graphene
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Katsnelson, M. I., Grigorieva, I. V., Dubonos, S. V., & Firsov, A. A. (2005) · Nature · doi:10.1038/nature04233 · Cited by 21,611
Cited by
Loh, K. P., Bao, Q., Ang, P. K., & Yang, J. (2010) · Journal of Materials Chemistry · doi:10.1039/b920539j · Cited by 1,450
Properties of graphene: a theoretical perspective
Abergel, D. S. L., Apalkov, V., Berashevich, J., Ziegler, K., & Chakraborty, T. (2010) · Advances in Physics · doi:10.1080/00018732.2010.487978 · Cited by 1,152
Rozhkov, A. V., Giavaras, G., Bliokh, Y. P., Freilikher, V., & Nori, F. (2011) · Physics Reports · doi:10.1016/j.physrep.2011.02.002 · Cited by 340
Teng, Z., Yang, N., Lv, H., Wang, S., Hu, M., Wang, C., Wang, D., & Wang, G. (2019) · Chem · doi:10.1016/j.chempr.2018.12.009 · Cited by 328
Metadata
- Authors
- Rudberg, E., Sałek, P., & Luo, Y.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-06-29
- Volume
- 7
- Issue
- 8
- Pages
- 2211-2213
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2045621780
- Cited by
- 206
- References
- 1
- FWCI
- 11.88
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
