Please use this identifier to cite or link to this item:
https://doi.org/10.1103/PhysRevB.88.195147
DC Field | Value | |
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dc.title | Topological phase transition and two-dimensional topological insulators in Ge-based thin films | |
dc.contributor.author | Singh, B. | |
dc.contributor.author | Lin, H. | |
dc.contributor.author | Prasad, R. | |
dc.contributor.author | Bansil, A. | |
dc.date.accessioned | 2016-09-06T05:44:28Z | |
dc.date.available | 2016-09-06T05:44:28Z | |
dc.date.issued | 2013-11-25 | |
dc.identifier.citation | Singh, B., Lin, H., Prasad, R., Bansil, A. (2013-11-25). Topological phase transition and two-dimensional topological insulators in Ge-based thin films. Physical Review B - Condensed Matter and Materials Physics 88 (19) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.88.195147 | |
dc.identifier.issn | 10980121 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/126662 | |
dc.description.abstract | We discuss possible topological phase transitions in Ge-based thin films of Ge(BixSb1-x)2Te4 as a function of layer thickness and Bi concentration x using the first-principles density functional theory framework. The bulk material is a topological insulator at x=1.0 with a single Dirac cone surface state at the surface Brillouin zone center, whereas it is a trivial insulator at x=0. Through a systematic examination of the band topologies, we predict that thin films of Ge(Bi xSb1-x)2Te4 with x=0.6, 0.8, and 1.0 are candidates for two-dimensional (2D) topological insulators, which would undergo a 2D topological phase transition as a function of x. A topological phase diagram for Ge(BixSb1-x)2Te4 thin films is presented to help guide their experimental exploration. © 2013 American Physical Society. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1103/PhysRevB.88.195147 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | PHYSICS | |
dc.description.doi | 10.1103/PhysRevB.88.195147 | |
dc.description.sourcetitle | Physical Review B - Condensed Matter and Materials Physics | |
dc.description.volume | 88 | |
dc.description.issue | 19 | |
dc.description.page | - | |
dc.description.coden | PRBMD | |
dc.identifier.isiut | 000327315000003 | |
Appears in Collections: | Staff Publications |
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