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Superconductivity in Weyl semimetal candidate MoTe2
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(2016) Superconductivity in Weyl semimetal candidate MoTe2. Nature Communications, 7 . 10038 . doi:10.1038/ncomms11038 ISSN 2041-1723.
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WRAP-superconductivity-semimetal-candidate-Kampert-2016.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (1014Kb) | Preview |
Official URL: http://dx.doi.org/10.1038/ncomms11038
Abstract
Transition metal dichalcogenides have attracted research interest over the last few decades due to their interesting structural chemistry, unusual electronic properties, rich intercalation chemistry and wide spectrum of potential applications. Despite the fact that the majority of related research focuses on semiconducting transition-metal dichalcogenides (for example, MoS2), recently discovered unexpected properties of WTe2 are provoking strong interest in semimetallic transition metal dichalcogenides featuring large magnetoresistance, pressure-driven superconductivity and Weyl semimetal states. We investigate the sister compound of WTe2, MoTe2, predicted to be a Weyl semimetal and a quantum spin Hall insulator in bulk and monolayer form, respectively. We find that bulk MoTe2 exhibits superconductivity with a transition temperature of 0.10 K. Application of external pressure dramatically enhances the transition temperature up to maximum value of 8.2 K at 11.7 GPa. The observed dome-shaped superconductivity phase diagram provides insights into the interplay between superconductivity and topological physics.
| Item Type: | Journal Article | ||||||
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| Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||
| Library of Congress Subject Headings (LCSH): | Transition metal compounds -- Magnetic properties , Superconductivity | ||||||
| Journal or Publication Title: | Nature Communications | ||||||
| Publisher: | Nature Publishing Group | ||||||
| ISSN: | 2041-1723 | ||||||
| Official Date: | 14 March 2016 | ||||||
| Dates: |
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| Volume: | 7 | ||||||
| Article Number: | 10038 | ||||||
| DOI: | 10.1038/ncomms11038 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||
| Date of first compliant deposit: | 27 April 2017 | ||||||
| Date of first compliant Open Access: | 3 May 2017 | ||||||
| Funder: | Alexander von Humboldt-Stiftung (AvHS), Deutsche Forschungsgemeinschaft (DFG), European Research Council (ERC) | ||||||
| Grant number: | Project No. EB 518/1-1 of DFG-SPP 1666 ‘Topological Insulators’ (DFG), Advanced Grant, No. (291472) ‘Idea Heusler’ (ERC) |
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