Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.4795735
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dc.titleExperimental evidences of topological surface states of β-Ag 2Te
dc.contributor.authorSulaev, A.
dc.contributor.authorRen, P.
dc.contributor.authorXia, B.
dc.contributor.authorLin, Q.H.
dc.contributor.authorYu, T.
dc.contributor.authorQiu, C.
dc.contributor.authorZhang, S.-Y.
dc.contributor.authorHan, M.-Y.
dc.contributor.authorLi, Z.P.
dc.contributor.authorZhu, W.G.
dc.contributor.authorWu, Q.
dc.contributor.authorFeng, Y.P.
dc.contributor.authorShen, L.
dc.contributor.authorShen, S.-Q.
dc.contributor.authorWang, L.
dc.date.accessioned2014-10-16T09:24:49Z
dc.date.available2014-10-16T09:24:49Z
dc.date.issued2013
dc.identifier.citationSulaev, A., Ren, P., Xia, B., Lin, Q.H., Yu, T., Qiu, C., Zhang, S.-Y., Han, M.-Y., Li, Z.P., Zhu, W.G., Wu, Q., Feng, Y.P., Shen, L., Shen, S.-Q., Wang, L. (2013). Experimental evidences of topological surface states of β-Ag 2Te. AIP Advances 3 (3) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4795735
dc.identifier.issn21583226
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/96556
dc.description.abstractWe present evidence of topological surface states in β-Ag 2Te through first-principles calculations, periodic quantum interference effect and ambipolar electric field effect in single crystalline nanoribbon. Our first-principles calculations show that β-Ag2Te is a topological insulator with a gapless Dirac cone with strong anisotropy. To experimentally probe the topological surface state, we synthesized high quality β-Ag2Te nanoribbons and performed electron transport measurements. The coexistence of pronounced Aharonov-Bohm oscillations and weak Altshuler-Aronov-Spivak oscillations clearly demonstrates coherent electron transport around the perimeter of β-Ag2Te nanoribbon and therefore the existence of topological surface states, which is further supported by the ambipolar electric field effect for devices fabricated by β-Ag2Te nanoribbons. The experimental evidences of topological surface states and the theoretically predicted anisotropic Dirac cone of β-Ag2Te suggest that the material may be a promising candidate of topological insulator for fundamental study and future spintronic devices. © 2013 Copyright 2013 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1063/1.4795735
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1063/1.4795735
dc.description.sourcetitleAIP Advances
dc.description.volume3
dc.description.issue3
dc.description.page-
dc.identifier.isiut000316951200023
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