Engineering multiple topological phases in nanoscale Van der Waals heterostructures: Realisation of α-antimonene

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dc.contributor.authorMaerkl T
dc.contributor.authorKowalczyk PJ
dc.contributor.authorLe Ster M
dc.contributor.authorMahajan IV
dc.contributor.authorPirie H
dc.contributor.authorAhmed Z
dc.contributor.authorBian G
dc.contributor.authorWang X
dc.contributor.authorChiang T-C
dc.contributor.authorBrown SA
dc.date.accessioned2018-05-02T22:02:51Z
dc.date.available2018-05-02T22:02:51Z
dc.date.issued2017en
dc.date.updated2017-10-25T02:02:34Z
dc.description.abstractVan der Waals heterostructures have recently been identified as providing many opportunities to create new two-dimensional materials, and in particular to produce materials with topologically interesting states. Here we show that it is possible to create such heterostructures with multiple topological phases in a single nanoscale island. We discuss their growth within the framework of diffusion-limited aggregation, the formation of moir\'e patterns due to the differing crystallographies of the materials comprising the heterostructure, and the potential to engineer both the electronic structure as well as local variations of topological order. In particular we show that it is possible to build islands which include both the hexagonal β- and rectangular α-forms of antimonene, on top of the topological insulator α-bismuthene. This is the first experimental realisation of α-antimonene, and we show that it is a topologically non-trivial material in the quantum spin Hall class.en
dc.identifier.citationMaerkl T, Kowalczyk PJ, Le Ster M, Mahajan IV, Pirie H, Ahmed Z, Bian G, Wang X, Chiang T-C, Brown SA (2017). Engineering multiple topological phases in nanoscale Van der Waals heterostructures: Realisation of α-antimonene. 2D Materials.en
dc.identifier.doihttps://doi.org/10.1088/2053-1583/aa8d8e
dc.identifier.issn2053-1583
dc.identifier.urihttp://hdl.handle.net/10092/15273
dc.language.isoen
dc.publisherIOP Publishingen
dc.subjectcond-mat.mtrl-scien
dc.subjectcond-mat.mtrl-scien
dc.subjectcond-mat.mes-hallen
dc.subjectTopological Materialsen
dc.subjectAntimoneneen
dc.subjectBismuthen
dc.subjectNanostructuresen
dc.subject2D Materialsen
dc.subjectThin filmsen
dc.subjectElectronic structureen
dc.subject.anzsrcFields of Research::40 - Engineering::4018 - Nanotechnology::401807 - Nanomaterialsen
dc.subject.anzsrcFields of Research::40 - Engineering::4016 - Materials engineering::401607 - Metals and alloy materialsen
dc.subject.anzsrcField of Research::03 - Chemical Sciences::0303 - Macromolecular and Materials Chemistry::030304 - Physical Chemistry of Materialsen
dc.titleEngineering multiple topological phases in nanoscale Van der Waals heterostructures: Realisation of α-antimoneneen
dc.typeJournal Articleen
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