The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.
Nearly Flatbands with Nontrivial Topology
Open accessAbstract
We report the theoretical discovery of a class of 2D tight-binding models containing nearly flatbands with nonzero Chern numbers. In contrast with previous studies, where nonlocal hoppings are usually required, the Hamiltonians of our models only require short-range hopping and have the potential to be realized in cold atomic gases. Because of the similarity with 2D continuum Landau levels, these topologically nontrivial nearly flatbands may lead to the realization of fractional anomalous quantum Hall states and fractional topological insulators in real materials. Among the models we discover, the most interesting and practical one is a square-lattice three-band model which has only nearest-neighbor hopping. To understand better the physics underlying the topological flatband aspects, we also present the studies of a minimal two-band model on the checkerboard lattice.
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Cites
Colloquium : Topological insulators
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Flat Bands and Wigner Crystallization in the Honeycomb Optical Lattice
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Self-citationThe fractional quantum Hall effect
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Cited by
Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
Cheuk, L. W., Sommer, A. T., Hadzibabic, Z., Yefsah, T., Bakr, W. S., & Zwierlein, M. W. (2012) · Physical Review Letters · doi:10.1103/physrevlett.109.095302 · Cited by 914
Dirac fermions and flat bands in the ideal kagome metal FeSn
Kang, M., Ye, L., Fang, S., You, J.-S., Levitan, A., Han, M., Facio, J. I., Jozwiak, C., Bostwick, A., Rotenberg, E., et al. (2020) · Nature Materials · doi:10.1038/s41563-019-0531-0 · Cited by 687
The Quantum Anomalous Hall Effect: Theory and Experiment
Liu, C.-X., Zhang, S.-C., & Qi, X.-L. (2016) · Annual Review of Condensed Matter Physics · doi:10.1146/annurev-conmatphys-031115-011417 · Cited by 617
Regnault, N., & Bernevig, B. A. (2011) · Physical Review X · doi:10.1103/physrevx.1.021014 · Cited by 608
Synthetic dimension in photonics
Yuan, L., Lin, Q., Xiao, M., & Fan, S. (2018) · Optica · doi:10.1364/optica.5.001396 · Cited by 545
Metadata
- Authors
- Sun, K., Gu, Z., Katsura, H., & Das Sarma, S.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2011-06-06
- Volume
- 106
- Issue
- 23
- Pages
- 236803-236803
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2009911686
- Cited by
- 931
- References
- 25
- FWCI
- 33.19
- Type
- journal article
- Language
- en
- Open access
- green
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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