Yang, Pei, Wang, Wei, Zhang, Xiaoqian et al. (4 more authors) (2019) Quantum Oscillations from Nontrivial States in Quasi-Two-Dimensional Dirac Semimetal ZrTe 5 Nanowires. Scientific Reports. 3558. ISSN 2045-2322
Abstract
Recently discovered Dirac semimetal ZrTe 5 bulk crystal, exhibits nontrivial conducting states in each individual layer, holding great potential for novel spintronic applications. Here, to reveal the transport properties of ZrTe 5 , we fabricated ZrTe 5 nanowires (NWs) devices, with much larger surface-to-volume ratio than bulk materials. Quantum oscillations induced by the two-dimensional (2D) nontrivial conducting states have been observed from these NWs and a finite Berry phase of ~π is obtained by the analysis of Landau-level fan diagram. More importantly, the absence of the Aharonov-Bohm (A-B) oscillations, along with the SdH oscillations, suggests that the electrons only conduct inside each layer. And the intralayer conducting is suppressed because of the weak connection between adjacent layers. Our results demonstrate that ZrTe 5 NWs can serve as a suitable quasi-2D Dirac semimetal with high mobility (~85000 cm 2 V −1 s −1 ) and large nontrivial conductance contribution (up to 8.68%).
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author(s) 2019 |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Electronic Engineering (York) |
Depositing User: | Pure (York) |
Date Deposited: | 12 Jun 2020 15:00 |
Last Modified: | 16 Oct 2024 16:40 |
Published Version: | https://doi.org/10.1038/s41598-019-39144-y |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1038/s41598-019-39144-y |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:161849 |