Transport measurements in porous Bi2Te3 thin films

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dc.contributor.authorAkhgar, Gen_AU
dc.contributor.authorNguyen, Aen_AU
dc.contributor.authorCortie, DLen_AU
dc.contributor.authorBake, Aen_AU
dc.contributor.authorZhao, WYen_AU
dc.contributor.authorLiu, Cen_AU
dc.contributor.authorFuhrer, MSen_AU
dc.contributor.authorCulcer, Den_AU
dc.contributor.authorHamilton, ARen_AU
dc.contributor.authorEdmonds, MTen_AU
dc.contributor.authorKarel, Jen_AU
dc.date.accessioned2023-11-08T04:47:10Zen_AU
dc.date.available2023-11-08T04:47:10Zen_AU
dc.date.issued2022-03-16en_AU
dc.date.statistics2023-10-06en_AU
dc.description.abstractRecent theoretical work has predicted the existence of disordered topological insulators , however, minimal experimental work has been conducted on disordered TIs. Here we used molecular-beam epitaxy (MBE) to grow Bi2Te3 thin films that were comprised of nanocrystals embedded in an amorphous matrix. Further disorder was introduced through Ne ion irradiation which produced porosity in the films. In this talk we will present magnetoresistance measurements on porous Bi2Te3, where weak anti-localisation (WAL) was observed. The magnetoresistance curves were fitted using a Dirac Fermion model specifically derived to model weak antilocalization in TIs. Our results also show that the temperature dependence of the phase coherence length in porous Bi2Te3, with an increased surface to volume ratio, exhibits 2D-like transport.en_AU
dc.identifier.articlenumberN59.00002en_AU
dc.identifier.citationAkhgar, G., Nguyen, A., Cortie, D., Bake, A., Zhao, W., Liu, C., Fuhrer, M. S., Culcer, D., Hamilton, A. R., Edmonds, M. T., & Karel, J. (2022). Transport measurements in porous Bi2Te3 thin films. Presentation to the APS March Meeting 2022, Chicago, Illinois, USA, March 14–18, 2022. In Bulletin of the American Physical Society, 67, (3), N59-00002. Retrieved from: https://meetings.aps.org/Meeting/MAR22/Session/N59.2en_AU
dc.identifier.conferenceenddate2022-03-18en_AU
dc.identifier.conferencenameAPS March Meeting 2022en_AU
dc.identifier.conferenceplaceChicago, Illinois, USAen_AU
dc.identifier.conferencestartdate2022-03-14en_AU
dc.identifier.issn0003-0503en_AU
dc.identifier.issue3en_AU
dc.identifier.journaltitleBulletin of the American Physical Societyen_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15185en_AU
dc.identifier.volume67en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.relation.urihttps://meetings.aps.org/Meeting/MAR22/Session/N59.2en_AU
dc.subjectFermionsen_AU
dc.subjectTransporten_AU
dc.subjectThin Filmsen_AU
dc.subjectPorosityen_AU
dc.subjectMolecular beam epitaxyen_AU
dc.subjectNanocrystalsen_AU
dc.subjectIrradiationen_AU
dc.subjectMagnetoresistanceen_AU
dc.titleTransport measurements in porous Bi2Te3 thin filmsen_AU
dc.typeConference Abstracten_AU
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