The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
Substrate-induced bandgap opening in epitaxial graphene
Open accessAbstract
Graphene has shown great application potential as the host material for next-generation electronic devices. However, despite its intriguing properties, one of the biggest hurdles for graphene to be useful as an electronic material is the lack of an energy gap in its electronic spectra. This, for example, prevents the use of graphene in making transistors. Although several proposals have been made to open a gap in graphene's electronic spectra, they all require complex engineering of the graphene layer. Here, we show that when graphene is epitaxially grown on SiC substrate, a gap of approximately 0.26 eV is produced. This gap decreases as the sample thickness increases and eventually approaches zero when the number of layers exceeds four. We propose that the origin of this gap is the breaking of sublattice symmetry owing to the graphene-substrate interaction. We believe that our results highlight a promising direction for bandgap engineering of graphene.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Electric Field Effect in Atomically Thin Carbon Films
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Zhang, Y., Dubonos, S. V., Grigorieva, I. V., & Firsov, A. A. (2004) · Science · doi:10.1126/science.1102896 · Cited by 66,834
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
Experimental observation of the quantum Hall effect and Berry's phase in graphene
Zhang, Y., Tan, Y.-W., Stormer, H. L., & Kim, P. (2005) · Nature · doi:10.1038/nature04235 · Cited by 13,435
Electronic Confinement and Coherence in Patterned Epitaxial Graphene
Berger, C., Song, Z., Li, X., Wu, X., Brown, N., Naud, C., Mayou, D., Li, T., Hass, J., Marchenkov, A. N., et al. (2006) · Science · doi:10.1126/science.1125925 · Cited by 5,535
Self-citationEnergy Band-Gap Engineering of Graphene Nanoribbons
Han, M. Y., Özyilmaz, B., Zhang, Y., & Kim, P. (2007) · Physical Review Letters · doi:10.1103/physrevlett.98.206805 · Cited by 5,207
Energy Gaps in Graphene Nanoribbons
Son, Y.-W., Cohen, M. L., & Louie, S. G. (2006) · Physical Review Letters · doi:10.1103/physrevlett.97.216803 · Cited by 5,080
Edge state in graphene ribbons: Nanometer size effect and edge shape dependence
Nakada, K., Fujita, M., Dresselhaus, G., & Dresselhaus, M. S. (1996) · Physical Review B · doi:10.1103/physrevb.54.17954 · Cited by 3,987
Berger, C., Song, Z., Li, T., Li, X., Ogbazghi, A. Y., Feng, R., Dai, Z., Marchenkov, A. N., Conrad, E. H., First, P. N., et al. (2004) · The Journal of Physical Chemistry B · doi:10.1021/jp040650f · Cited by 3,548
Self-citationControlling the Electronic Structure of Bilayer Graphene
Ohta, T., Bostwick, A., Seyller, T., Horn, K., & Rotenberg, E. (2006) · Science · doi:10.1126/science.1130681 · Cited by 3,339
Intercalation compounds of graphite
Dresselhaus, M. S., & Dresselhaus, G. (2002) · Advances in Physics · doi:10.1080/00018730110113644 · Cited by 2,139
Cited by
The electronic properties of graphene
Castro Neto, A. H., Guinea, F., Peres, N. M. R., Novoselov, K. S., & Geim, A. K. (2009) · Reviews of Modern Physics · doi:10.1103/revmodphys.81.109 · Cited by 24,803
“There is also eviden e for strongintera tion between a substrate and the graphene layerleading to the appearan e of gaps at the Dira point(Zhou et al., 2007).”
BackgroundMethodResultSelf-citationGraphene: Status and Prospects
Geim, A. K. (2009) · Science · doi:10.1126/science.1158877 · Cited by 13,942
Berry phase effects on electronic properties
Xiao, D., Chang, M.-C., & Niu, Q. (2010) · Reviews of Modern Physics · doi:10.1103/revmodphys.82.1959 · Cited by 5,277
A topological Dirac insulator in a quantum spin Hall phase
Hsieh, D., Qian, D., Wray, L., Xia, Y., Hor, Y. S., Cava, R. J., & Hasan, M. Z. (2008) · Nature · doi:10.1038/nature06843 · Cited by 3,523
“1, but its spin-orbit coupling is several orders of magnitude weaker [3], and the only known method of inducing a gap in the Dirac spectrum of graphene is by coupling to an external chemical substrate [20].”
BackgroundValley-Contrasting Physics in Graphene: Magnetic Moment and Topological Transport
Xiao, D., Yao, W., & Niu, Q. (2007) · Physical Review Letters · doi:10.1103/physrevlett.99.236809 · Cited by 2,296
Metadata
- Authors
- Zhou, S. Y., Gweon, G.-H., Fedorov, A. V., First, P. N., de Heer, W. A., Lee, D.-H., Guinea, F., Castro Neto, A. H., & Lanzara, A.
- Venue
- Nature Materials
- Published
- 2007-09-09
- Volume
- 6
- Issue
- 10
- Pages
- 770-775
- ISSN
- 1476-1122 (ISSN-L)
- 1476-4660
- OpenAlex
- W2113674800
- Cited by
- 2,381
- References
- 29
- FWCI
- 72.95
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Substrate-induced bandgap opening in epitaxial graphene. https://app.cochat.ai/papers/10.1038/nmat2003
- The paper
- Zhou, S. Y., Gweon, G.-H., Fedorov, A. V., First, P. N., de Heer, W. A., Lee, D.-H., Guinea, F., Castro Neto, A. H., & Lanzara, A. (2007). Substrate-induced bandgap opening in epitaxial graphene. Nature Materials. https://doi.org/10.1038/nmat2003
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
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.
