The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.
Ultrathin Topological Insulator Bi2Se3 Nanoribbons Exfoliated by Atomic Force Microscopy
Open accessAbstract
Ultrathin topological insulator nanostructures, in which coupling between top and bottom surface states takes place, are of great intellectual and practical importance. Due to the weak van der Waals interaction between adjacent quintuple layers (QLs), the layered bismuth selenide (Bi(2)Se(3)), a single Dirac-cone topological insulator with a large bulk gap, can be exfoliated down to a few QLs. In this paper, we report the first controlled mechanical exfoliation of Bi(2)Se(3) nanoribbons (>50 QLs) by an atomic force microscope (AFM) tip down to a single QL. Microwave impedance microscopy is employed to map out the local conductivity of such ultrathin nanoribbons, showing drastic difference in sheet resistance between 1-2 QLs and 4-5 QLs. Transport measurement carried out on an exfoliated ( 50 QLs) ribbons. These AFM-exfoliated thin nanoribbons afford interesting candidates for studying the transition from quantum spin Hall surface to edge states.
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Cites
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Experimental Realization of a Three-Dimensional Topological Insulator, Bi 2 Te 3
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Self-citationA topological Dirac insulator in a quantum spin Hall phase
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Aharonov–Bohm interference in topological insulator nanoribbons
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Cited by
Topological insulators and superconductors
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Metadata
- Authors
- Hong, S. S., Kundhikanjana, W., Cha, J. J., Lai, K., Kong, D., Meister, S., Kelly, M. A., Shen, Z.-X., & Cui, Y.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-07-12
- Volume
- 10
- Issue
- 8
- Pages
- 3118-3122
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W1975084501
- Cited by
- 177
- References
- 11
- FWCI
- 8.96
- Type
- journal article
- Language
- en
- Open access
- green
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- Hong, S. S., Kundhikanjana, W., Cha, J. J., Lai, K., Kong, D., Meister, S., Kelly, M. A., Shen, Z.-X., & Cui, Y. (2010). Ultrathin Topological Insulator Bi2Se3 Nanoribbons Exfoliated by Atomic Force Microscopy. Nano Letters. https://doi.org/10.1021/nl101884h
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