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Title: Concurrence of superconductivity and structure transition in Weyl semimetal TaP under pressure

Abstract

Weyl semimetal defines a material with three-dimensional Dirac cones, which appear in pair due to the breaking of spatial inversion or time reversal symmetry. Superconductivity is the state of quantum condensation of paired electrons. Turning a Weyl semimetal into superconducting state is very important in having some unprecedented discoveries. In this work, by doing resistive measurements on a recently recognized Weyl semimetal TaP under pressures up to about 100 GPa, we show the concurrence of superconductivity and a structure transition at about 70 GPa. It is found that the superconductivity becomes more pronounced when decreasing pressure and retains when the pressure is completely released. High-pressure x-ray diffraction measurements also confirm the structure phase transition from I41md to P-6m2 at about 70 GPa. More importantly, ab-initial calculations reveal that the P-6m2 phase is a new Weyl semimetal phase and has only one set of Weyl points at the same energy level. Our discovery of superconductivity in TaP by high pressure will stimulate investigations on superconductivity and Majorana fermions in Weyl semimetals.

Authors:
; ; ; ; ORCiD logo; ; ORCiD logo; ; ; ; ; ; ; ORCiD logo; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
DOE - BASIC ENERGY SCIENCESNSFDOE-NNSAFOREIGN
OSTI Identifier:
1418051
Resource Type:
Journal Article
Journal Name:
npj Quantum Materials
Additional Journal Information:
Journal Volume: 2; Journal Issue: 1; Journal ID: ISSN 2397-4648
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
ENGLISH
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Li, Yufeng, Zhou, Yonghui, Guo, Zhaopeng, Han, Fei, Chen, Xuliang, Lu, Pengchao, Wang, Xuefei, An, Chao, Zhou, Ying, Xing, Jie, Du, Guan, Zhu, Xiyu, Yang, Huan, Sun, Jian, Yang, Zhaorong, Yang, Wenge, Mao, Ho-Kwang, Zhang, Yuheng, and Wen, Hai-Hu. Concurrence of superconductivity and structure transition in Weyl semimetal TaP under pressure. United States: N. p., 2017. Web. doi:10.1038/s41535-017-0066-z.
Li, Yufeng, Zhou, Yonghui, Guo, Zhaopeng, Han, Fei, Chen, Xuliang, Lu, Pengchao, Wang, Xuefei, An, Chao, Zhou, Ying, Xing, Jie, Du, Guan, Zhu, Xiyu, Yang, Huan, Sun, Jian, Yang, Zhaorong, Yang, Wenge, Mao, Ho-Kwang, Zhang, Yuheng, & Wen, Hai-Hu. Concurrence of superconductivity and structure transition in Weyl semimetal TaP under pressure. United States. doi:10.1038/s41535-017-0066-z.
Li, Yufeng, Zhou, Yonghui, Guo, Zhaopeng, Han, Fei, Chen, Xuliang, Lu, Pengchao, Wang, Xuefei, An, Chao, Zhou, Ying, Xing, Jie, Du, Guan, Zhu, Xiyu, Yang, Huan, Sun, Jian, Yang, Zhaorong, Yang, Wenge, Mao, Ho-Kwang, Zhang, Yuheng, and Wen, Hai-Hu. Fri . "Concurrence of superconductivity and structure transition in Weyl semimetal TaP under pressure". United States. doi:10.1038/s41535-017-0066-z.
@article{osti_1418051,
title = {Concurrence of superconductivity and structure transition in Weyl semimetal TaP under pressure},
author = {Li, Yufeng and Zhou, Yonghui and Guo, Zhaopeng and Han, Fei and Chen, Xuliang and Lu, Pengchao and Wang, Xuefei and An, Chao and Zhou, Ying and Xing, Jie and Du, Guan and Zhu, Xiyu and Yang, Huan and Sun, Jian and Yang, Zhaorong and Yang, Wenge and Mao, Ho-Kwang and Zhang, Yuheng and Wen, Hai-Hu},
abstractNote = {Weyl semimetal defines a material with three-dimensional Dirac cones, which appear in pair due to the breaking of spatial inversion or time reversal symmetry. Superconductivity is the state of quantum condensation of paired electrons. Turning a Weyl semimetal into superconducting state is very important in having some unprecedented discoveries. In this work, by doing resistive measurements on a recently recognized Weyl semimetal TaP under pressures up to about 100 GPa, we show the concurrence of superconductivity and a structure transition at about 70 GPa. It is found that the superconductivity becomes more pronounced when decreasing pressure and retains when the pressure is completely released. High-pressure x-ray diffraction measurements also confirm the structure phase transition from I41md to P-6m2 at about 70 GPa. More importantly, ab-initial calculations reveal that the P-6m2 phase is a new Weyl semimetal phase and has only one set of Weyl points at the same energy level. Our discovery of superconductivity in TaP by high pressure will stimulate investigations on superconductivity and Majorana fermions in Weyl semimetals.},
doi = {10.1038/s41535-017-0066-z},
journal = {npj Quantum Materials},
issn = {2397-4648},
number = 1,
volume = 2,
place = {United States},
year = {2017},
month = {12}
}

Works referenced in this record:

Topological insulators and superconductors
journal, October 2011


Spectroscopic evidence for a type II Weyl semimetallic state in MoTe2
journal, July 2016

  • Huang, Lunan; McCormick, Timothy M.; Ochi, Masayuki
  • Nature Materials, Vol. 15, Issue 11
  • DOI: 10.1038/nmat4685

Topologically protected surface Majorana arcs and bulk Weyl fermions in ferromagnetic superconductors
journal, September 2012


Observation of Fermi arc and its connection with bulk states in the candidate type-II Weyl semimetal WTe 2
journal, December 2016


Tuning the electronic and the crystalline structure of LaBi by pressure: From extreme magnetoresistance to superconductivity
journal, January 2017


Type-II Weyl semimetals
journal, November 2015

  • Soluyanov, Alexey A.; Gresch, Dominik; Wang, Zhijun
  • Nature, Vol. 527, Issue 7579
  • DOI: 10.1038/nature15768

Pressure-driven superconductivity in the transition-metal pentatelluride HfT e 5
journal, August 2016


Large unsaturated positive and negative magnetoresistance in Weyl semimetal TaP
journal, February 2016

  • Du, JianHua; Wang, HangDong; Chen, Qin
  • Science China Physics, Mechanics & Astronomy, Vol. 59, Issue 5
  • DOI: 10.1007/s11433-016-5798-4

Quasiparticle interference of the Fermi arcs and surface-bulk connectivity of a Weyl semimetal
journal, March 2016


Experimental observation of topological Fermi arcs in type-II Weyl semimetal MoTe2
journal, September 2016

  • Deng, Ke; Wan, Guoliang; Deng, Peng
  • Nature Physics, Vol. 12, Issue 12
  • DOI: 10.1038/nphys3871

Chern Semimetal and the Quantized Anomalous Hall Effect in HgCr 2 Se 4
journal, October 2011


Large magnetoresistance over an extended temperature regime in monophosphides of tantalum and niobium
journal, July 2015


VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data
journal, October 2011


MoTe 2 : A Type-II Weyl Topological Metal
journal, July 2016


Pressure-Induced New Topological Weyl Semimetal Phase in TaAs
journal, September 2016


Experimental discovery of a topological Weyl semimetal state in TaP
journal, November 2015

  • Xu, Su-Yang; Belopolski, Ilya; Sanchez, Daniel S.
  • Science Advances, Vol. 1, Issue 10
  • DOI: 10.1126/sciadv.1501092

Prediction of Weyl semimetal in orthorhombic MoTe 2
journal, October 2015


Observation of Fermi arcs in the type-II Weyl semimetal candidate WTe 2
journal, September 2016


Observation of large topologically trivial Fermi arcs in the candidate type-II Weyl semimetal WT e 2
journal, September 2016


Observation of Majorana fermions in ferromagnetic atomic chains on a superconductor
journal, October 2014


Observation of Weyl nodes in TaAs
journal, August 2015

  • Lv, B. Q.; Xu, N.; Weng, H. M.
  • Nature Physics, Vol. 11, Issue 9
  • DOI: 10.1038/nphys3426

Superconducting proximity effect and Majorana flat bands at the surface of a Weyl semimetal
journal, May 2016


Discovery of tip induced unconventional superconductivity on Weyl semimetal
journal, March 2017


Topological superconductors: a review
journal, May 2017


Pressure-induced superconductivity in a three-dimensional topological material ZrTe 5
journal, February 2016

  • Zhou, Yonghui; Wu, Juefei; Ning, Wei
  • Proceedings of the National Academy of Sciences, Vol. 113, Issue 11
  • DOI: 10.1073/pnas.1601262113

Topological semimetal and Fermi-arc surface states in the electronic structure of pyrochlore iridates
journal, May 2011


Negative magnetoresistance without well-defined chirality in the Weyl semimetal TaP
journal, May 2016

  • Arnold, Frank; Shekhar, Chandra; Wu, Shu-Chun
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms11615

Structural and Transport Properties of the Weyl Semimetal NbAs at High Pressure
journal, September 2015