Superconductivity in Weyl semimetal candidate MoTe2

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 f...

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Main Authors:	Qi, Yanpeng, Naumov, Pavel G., Ali, Mazhar N., Rajamathi, Catherine R., Schnelle, Walter, Barkalov, Oleg, Hanfland, Michael, Wu, Shu-Chun, Shekhar, Chandra, Sun, Yan, Süß, Vicky, Schmidt, Marcus, Schwarz, Ulrich, Pippel, Eckhard, Werner, Peter, Hillebrand, Reinald, Förster, Tobias, Kampert, Erik, Parkin, Stuart, Cava, R. J., Felser, Claudia, Yan, Binghai, Medvedev, Sergey A.
Format:	Online
Language:	English
Published:	Nature Publishing Group 2016
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4793082/

id	pubmed-4793082
recordtype	oai_dc
spelling	pubmed-47930822016-03-21 Superconductivity in Weyl semimetal candidate MoTe2 Qi, Yanpeng Naumov, Pavel G. Ali, Mazhar N. Rajamathi, Catherine R. Schnelle, Walter Barkalov, Oleg Hanfland, Michael Wu, Shu-Chun Shekhar, Chandra Sun, Yan Süß, Vicky Schmidt, Marcus Schwarz, Ulrich Pippel, Eckhard Werner, Peter Hillebrand, Reinald Förster, Tobias Kampert, Erik Parkin, Stuart Cava, R. J. Felser, Claudia Yan, Binghai Medvedev, Sergey A. Article 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. Nature Publishing Group 2016-03-14 /pmc/articles/PMC4793082/ /pubmed/26972450 http://dx.doi.org/10.1038/ncomms11038 Text en Copyright © 2016, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Qi, Yanpeng Naumov, Pavel G. Ali, Mazhar N. Rajamathi, Catherine R. Schnelle, Walter Barkalov, Oleg Hanfland, Michael Wu, Shu-Chun Shekhar, Chandra Sun, Yan Süß, Vicky Schmidt, Marcus Schwarz, Ulrich Pippel, Eckhard Werner, Peter Hillebrand, Reinald Förster, Tobias Kampert, Erik Parkin, Stuart Cava, R. J. Felser, Claudia Yan, Binghai Medvedev, Sergey A.
spellingShingle	Qi, Yanpeng Naumov, Pavel G. Ali, Mazhar N. Rajamathi, Catherine R. Schnelle, Walter Barkalov, Oleg Hanfland, Michael Wu, Shu-Chun Shekhar, Chandra Sun, Yan Süß, Vicky Schmidt, Marcus Schwarz, Ulrich Pippel, Eckhard Werner, Peter Hillebrand, Reinald Förster, Tobias Kampert, Erik Parkin, Stuart Cava, R. J. Felser, Claudia Yan, Binghai Medvedev, Sergey A. Superconductivity in Weyl semimetal candidate MoTe2
author_facet	Qi, Yanpeng Naumov, Pavel G. Ali, Mazhar N. Rajamathi, Catherine R. Schnelle, Walter Barkalov, Oleg Hanfland, Michael Wu, Shu-Chun Shekhar, Chandra Sun, Yan Süß, Vicky Schmidt, Marcus Schwarz, Ulrich Pippel, Eckhard Werner, Peter Hillebrand, Reinald Förster, Tobias Kampert, Erik Parkin, Stuart Cava, R. J. Felser, Claudia Yan, Binghai Medvedev, Sergey A.
author_sort	Qi, Yanpeng
title	Superconductivity in Weyl semimetal candidate MoTe2
title_short	Superconductivity in Weyl semimetal candidate MoTe2
title_full	Superconductivity in Weyl semimetal candidate MoTe2
title_fullStr	Superconductivity in Weyl semimetal candidate MoTe2
title_full_unstemmed	Superconductivity in Weyl semimetal candidate MoTe2
title_sort	superconductivity in weyl semimetal candidate mote2
description	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.
publisher	Nature Publishing Group
publishDate	2016
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4793082/
_version_	1613552322048163840

Superconductivity in Weyl semimetal candidate MoTe2

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