DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Superconducting pairing symmetry in MoTe 2

Abstract

Topological superconductors have long been sought for their potential use in quantum computing. The type-II Weyl semimetal MoTe2 is an obvious candidate, exhibiting a superconducting state below 500 mK at ambient pressure, but the question remains whether the pairing is conventional s++ or topological s+-. The application of external pressure favors the superconducting state in MoTe2 and suppresses the structural transition from 1T' to Td. The competition between the two structures leads to a mixed phase that strongly enhances the disorder present in the system, remarkably without affecting the superconducting transition temperature, in contrast to the expectation of s+- pairing superconductivity. Our thorough analysis of the electrical and Hall resistivities as a function of pressure yields the most accurate temperature-pressure phase diagram available to date for MoTe2 and a detailed view of the relationship between disorder and superconductivity, supporting a conventional s++ pairing symmetry.

Authors:
ORCiD logo; ORCiD logo; ; ORCiD logo; ; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); European Union (EU); São Paulo Research Foundation
OSTI Identifier:
2212825
Alternate Identifier(s):
OSTI ID: 2284069
Report Number(s):
BNL-225268-2024-JAAM
Journal ID: ISSN 2475-9953; PRMHAR; L111801
Grant/Contract Number:  
SC0012704; 101019024; 2018/0823-0; 2021/02314-9; 2022/05447-2
Resource Type:
Published Article
Journal Name:
Physical Review Materials
Additional Journal Information:
Journal Name: Physical Review Materials Journal Volume: 7 Journal Issue: 11; Journal ID: ISSN 2475-9953
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Piva, M. M., Kutelak, L. O., Borth, R., Liu, Y., Petrovic, C., dos Reis, R. D., and Nicklas, M. Superconducting pairing symmetry in MoTe 2. United States: N. p., 2023. Web. doi:10.1103/PhysRevMaterials.7.L111801.
Piva, M. M., Kutelak, L. O., Borth, R., Liu, Y., Petrovic, C., dos Reis, R. D., & Nicklas, M. Superconducting pairing symmetry in MoTe 2. United States. https://doi.org/10.1103/PhysRevMaterials.7.L111801
Piva, M. M., Kutelak, L. O., Borth, R., Liu, Y., Petrovic, C., dos Reis, R. D., and Nicklas, M. Thu . "Superconducting pairing symmetry in MoTe 2". United States. https://doi.org/10.1103/PhysRevMaterials.7.L111801.
@article{osti_2212825,
title = {Superconducting pairing symmetry in MoTe 2},
author = {Piva, M. M. and Kutelak, L. O. and Borth, R. and Liu, Y. and Petrovic, C. and dos Reis, R. D. and Nicklas, M.},
abstractNote = {Topological superconductors have long been sought for their potential use in quantum computing. The type-II Weyl semimetal MoTe2 is an obvious candidate, exhibiting a superconducting state below 500 mK at ambient pressure, but the question remains whether the pairing is conventional s++ or topological s+-. The application of external pressure favors the superconducting state in MoTe2 and suppresses the structural transition from 1T' to Td. The competition between the two structures leads to a mixed phase that strongly enhances the disorder present in the system, remarkably without affecting the superconducting transition temperature, in contrast to the expectation of s+- pairing superconductivity. Our thorough analysis of the electrical and Hall resistivities as a function of pressure yields the most accurate temperature-pressure phase diagram available to date for MoTe2 and a detailed view of the relationship between disorder and superconductivity, supporting a conventional s++ pairing symmetry.},
doi = {10.1103/PhysRevMaterials.7.L111801},
journal = {Physical Review Materials},
number = 11,
volume = 7,
place = {United States},
year = {Thu Nov 16 00:00:00 EST 2023},
month = {Thu Nov 16 00:00:00 EST 2023}
}

Works referenced in this record:

Anticorrelation between polar lattice instability and superconductivity in the Weyl semimetal candidate MoTe 2
journal, March 2017


Elastic and electronic tuning of magnetoresistance in MoTe 2
journal, December 2017


Topological insulators and superconductors
journal, October 2011


Giant enhancement of cryogenic thermopower by polar structural instability in the pressurized semimetal MoTe2
journal, November 2019


Quantum oscillations from networked topological interfaces in a Weyl semimetal
journal, September 2020


A low-temperature structural phase transition in β-MoTe 2
journal, August 1978


Topological insulator: Spintronics and quantum computations
journal, May 2019


Possible unconventional two-band superconductivity in Mo Te 2
journal, August 2020


Mechanical control of crystal symmetry and superconductivity in Weyl semimetal MoTe 2
journal, July 2018


Pressure Induced Topological Quantum Phase Transition in Weyl Semimetal Td-MoTe2
journal, September 2020

  • Guguchia, Zurab; dos Santos, Antonio M.; von Rohr, Fabian O.
  • Journal of the Physical Society of Japan, Vol. 89, Issue 9
  • DOI: 10.7566/JPSJ.89.094707

Te vacancy-driven superconductivity in orthorhombic molybdenum ditelluride
journal, June 2017


Signatures of the topological s +− superconducting order parameter in the type-II Weyl semimetal T d-MoTe2
journal, October 2017


Electronic band tuning under pressure in MoTe2 topological semimetal
journal, August 2019


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


Topological quantum computation based on chiral Majorana fermions
journal, October 2018

  • Lian, Biao; Sun, Xiao-Qi; Vaezi, Abolhassan
  • Proceedings of the National Academy of Sciences, Vol. 115, Issue 43
  • DOI: 10.1073/pnas.1810003115

Angular dependence of the upper critical field in the high-pressure 1 T phase of MoTe 2
journal, March 2019


Superconductivity enhancement in the S-doped Weyl semimetal candidate MoTe 2
journal, April 2016

  • Chen, F. C.; Luo, X.; Xiao, R. C.
  • Applied Physics Letters, Vol. 108, Issue 16
  • DOI: 10.1063/1.4947433

Iron pnictides and chalcogenides: a new paradigm for superconductivity
journal, January 2022


Nontrivial superconductivity in topological MoTe 2− x S x crystals
journal, August 2018

  • Li, Yanan; Gu, Qiangqiang; Chen, Chen
  • Proceedings of the National Academy of Sciences, Vol. 115, Issue 38
  • DOI: 10.1073/pnas.1801650115

Origin of extremely large magnetoresistance in the candidate type-II Weyl semimetal MoTe2−x
journal, September 2018


Non-Abelian anyons and topological quantum computation
journal, September 2008


Transport evidence of asymmetric spin–orbit coupling in few-layer superconducting 1Td-MoTe2
journal, May 2019


Bulk Fermi surface of the Weyl type-II semimetallic candidate γ MoTe 2
journal, October 2017


Non-Abelian topological orders and Majorana fermions in spin-singlet superconductors
journal, October 2010


Enhanced Superconductivity and Upper Critical Field in Ta‐Doped Weyl Semimetal Td‐MoTe2
journal, March 2023


Evidence for Two Superconducting Energy Gaps in MgB 2 by Point-Contact Spectroscopy
journal, September 2001


Time-reversal-invariant topological superconductivity in doped Weyl semimetals
journal, July 2014


Comprehensive review on topological superconducting materials and interfaces
journal, July 2022

  • Sharma, M. M.; Sharma, Prince; Karn, N. K.
  • Superconductor Science and Technology, Vol. 35, Issue 8
  • DOI: 10.1088/1361-6668/ac6987

Coupled ferroelectricity and superconductivity in bilayer Td-MoTe2
journal, January 2023


Gate and Temperature Driven Phase Transitions in Few-Layer MoTe2
journal, March 2023


Detection of Hole Pockets in the Candidate Type-II Weyl Semimetal MoTe 2 from Shubnikov–de Haas Quantum Oscillations
journal, February 2020


Recent Progress in Two-Dimensional MoTe2 Hetero-Phase Homojunctions
journal, December 2021


Discovery-Synthesis, Design, and Prediction of Chalcogenide Phases
journal, March 2017


Superconductivity in Weyl semimetal candidate MoTe2
journal, March 2016

  • Qi, Yanpeng; Naumov, Pavel G.; Ali, Mazhar N.
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms11038

Dimensionality-driven orthorhombic MoT e 2 at room temperature
journal, January 2018


T d -MoTe 2 : A possible topological superconductor
journal, September 2016

  • Luo, X.; Chen, F. C.; Zhang, J. L.
  • Applied Physics Letters, Vol. 109, Issue 10
  • DOI: 10.1063/1.4962466

Majorana returns
journal, September 2009


Disorder-Driven Transition from s ± to s + + Superconducting Order Parameter in Proton Irradiated Ba ( Fe 1 x Rh x ) 2 As 2 Single Crystals
journal, September 2018


Topological Phase Transition in MoTe2: A Review
journal, December 2022

  • Paul, Suvodeep; Talukdar, Saswata; Singh, Ravi Shankar
  • physica status solidi (RRL) – Rapid Research Letters, Vol. 17, Issue 6
  • DOI: 10.1002/pssr.202200420