The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Ca intercalated bilayer graphene as a thinnest limit of superconducting C 6 Ca
Open accessAbstract
Success in isolating a 2D graphene sheet from bulky graphite has triggered intensive studies of its physical properties as well as its application in devices. Graphite intercalation compounds (GICs) have provided a platform of exotic quantum phenomena such as superconductivity, but it is unclear whether such intercalation is feasible in the thinnest 2D limit (i.e., bilayer graphene). Here we report a unique experimental realization of 2D GIC, by fabricating calcium-intercalated bilayer graphene C 6 CaC 6 on silicon carbide. We have investigated the structure and electronic states by scanning tunneling microscopy and angle-resolved photoemission spectroscopy. We observed a free-electron–like interlayer band at the Brillouin-zone center, which is thought to be responsible for the superconductivity in 3D GICs, in addition to a large π* Fermi surface at the zone boundary. The present success in fabricating Ca-intercalated bilayer graphene would open a promising route to search for other 2D superconductors as well as to explore its application in devices.
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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
Biased Bilayer Graphene: Semiconductor with a Gap Tunable by the Electric Field Effect
Castro, E. V., Novoselov, K. S., Morozov, S. V., Peres, N. M. R., dos Santos, J. M. B. L., Nilsson, J., Guinea, F., Geim, A. K., & Neto, A. H. C. (2007) · Physical Review Letters · doi:10.1103/physrevlett.99.216802 · Cited by 2,033
Asymmetry gap in the electronic band structure of bilayer graphene
McCann, E. (2006) · Physical Review B · doi:10.1103/physrevb.74.161403 · Cited by 1,275
Cited by
Bridging the g-C3N4 Interlayers for Enhanced Photocatalysis
Xiong, T., Cen, W., Zhang, Y., & Dong, F. (2016) · ACS Catalysis · doi:10.1021/acscatal.5b02922 · Cited by 1,153
Synthesis, structure and applications of graphene-based 2D heterostructures
Solís-Fernández, P., Bissett, M., & Ago, H. (2017) · Chemical Society Reviews · doi:10.1039/c7cs00160f · Cited by 371
Engineering covalently bonded 2D layered materials by self-intercalation
Zhao, X., Song, P., Wang, C., Riis-Jensen, A. C., Fu, W., Deng, Y., Wan, D., Kang, L., Ning, S., Dan, J., et al. (2020) · Nature · doi:10.1038/s41586-020-2241-9 · Cited by 325
Rajapakse, M., Karki, B., Abu, U. O., Pishgar, S., Musa, M. R. K., Riyadh, S. M. S., Yu, M., Sumanasekera, G., & Jasinski, J. B. (2021) · npj 2D Materials and Applications · doi:10.1038/s41699-021-00211-6 · Cited by 268
Layered Intercalation Materials
Zhou, J., Lin, Z., Ren, H., Duan, X., Shakir, I., Huang, Y., & Duan, X. (2021) · Advanced Materials · doi:10.1002/adma.202004557 · Cited by 266
Metadata
- Authors
- Kanetani, K., Sugawara, K., Sato, T., Shimizu, R., Iwaya, K., Hitosugi, T., & Takahashi, T.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2012-11-08
- Volume
- 109
- Issue
- 48
- Pages
- 19610-19613
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2020795371
- Cited by
- 163
- References
- 3
- FWCI
- 3.19
- Type
- journal article
- Language
- en
- Open access
- green
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- Kanetani, K., Sugawara, K., Sato, T., Shimizu, R., Iwaya, K., Hitosugi, T., & Takahashi, T. (2012). Ca intercalated bilayer graphene as a thinnest limit of superconducting C 6 Ca. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1208889109
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