Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Observation of nearly identical superconducting transition temperatures in the pressurized Weyl semimetals MIrTe4 (M=Nb and Ta)

Journal Article · · Physical Review B
 [1];  [2];  [3];  [3];  [4];  [5];  [6];  [2];  [5];  [5];  [2];  [2];  [2];  [5];  [7];  [7]
  1. Chinese Academy of Sciences (CAS), Beijing (China); University of Chinese Academy of Sciences, Beijing (China); National High Magnetic Field Lab / Florida State University
  2. Chinese Academy of Sciences (CAS), Beijing (China)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
  5. Chinese Academy of Sciences (CAS), Beijing (China); University of Chinese Academy of Sciences, Beijing (China)
  6. Chinese Academy of Sciences (CAS), Beijing (China); Songshan Lake Materials Laboratory, Guangdong (China)
  7. Chinese Academy of Sciences (CAS), Beijing (China); University of Chinese Academy of Sciences, Beijing (China); Songshan Lake Materials Laboratory, Guangdong (China)

In this work, we report the observation of pressure-induced superconductivity in type-II Weyl semimetal (WSM) candidate NbIrTe4 and the evolution of its Hall coefficient (RH), magnetoresistance (MR), and lattice with increasing pressure to ~ 63 GPa. These results provide a significant opportunity to investigate the universal high-pressure behavior of ternary WSMs, including the sister compound TaIrTe4 that has been known through our previous studies. We find that the pressure-tuned evolution from the WSM to the superconducting (SC) state in these two compounds exhibit the same trend, i.e., a pressure-induced SC state emerges from the matrix of the non-superconducting WSM state at ~ 27 GPa, and then the WSM state and the SC state coexist up to 40 GPa. Above this pressure, an identical high-pressure behavior, characterized by almost the same value of RH and MR in its normal state and the same value of Tc in its SC state, appears in both compounds. Our results not only reveal the evolution from the WSM state to the SC state, but also demonstrate that NbIrTe4 and TaIrTe4 can make the same contribution to the normal and SC states that inhabit in the high-pressure phase, although these two compounds have dramatically different band structure at ambient pressure.

Research Organization:
Florida State Univ., Tallahassee, FL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; National Science Foundation (NSF); National Natural Science Foundation of China (NSFC); Chinese Academy of Sciences; National Key Research and Development Program of China; China Postdoctoral Science Foundation
Grant/Contract Number:
SC0002613
OSTI ID:
1825523
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 14 Vol. 104; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (39)

Raman Signatures of Broken Inversion Symmetry and In‐Plane Anisotropy in Type‐II Weyl Semimetal Candidate TaIrTe 4 journal May 2018
van der Waals Stacking-Induced Topological Phase Transition in Layered Ternary Transition Metal Chalcogenides journal December 2016
Superconductivity in Potassium-Intercalated T d -WTe 2 journal September 2018
Calibration of the ruby pressure gauge to 800 kbar under quasi-hydrostatic conditions journal January 1986
Type-II Weyl semimetals journal November 2015
Superconductivity in Weyl semimetal candidate MoTe2 journal March 2016
Quantum oscillations from surface Fermi arcs in Weyl and Dirac semimetals journal October 2014
A Weyl Fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class journal June 2015
Superconductivity emerging from a suppressed large magnetoresistant state in tungsten ditelluride journal July 2015
Pressure-driven dome-shaped superconductivity and electronic structural evolution in tungsten ditelluride journal July 2015
Weyl semimetal phase in the non-centrosymmetric compound TaAs journal August 2015
Signatures of the topological s +− superconducting order parameter in the type-II Weyl semimetal T d-MoTe2 journal October 2017
Pressure-induced superconductivity and modification of Fermi surface in type-II Weyl semimetal NbIrTe4 journal June 2021
Convenient optical pressure gauge for multimegabar pressures calibrated to 300GPa journal January 2005
Pressure calibration of diamond anvil Raman gauge to 310GPa journal August 2006
Superconductivity enhancement in the S-doped Weyl semimetal candidate MoTe 2 journal April 2016
Nontrivial superconductivity in topological MoTe 2− x S x crystals journal August 2018
Surface superconductivity in the type II Weyl semimetal TaIrTe4 journal December 2019
Temperature and Purity Dependence of the Superconducting Critical Field, H c 2 . III. Electron Spin and Spin-Orbit Effects journal July 1966
Topological semimetal and Fermi-arc surface states in the electronic structure of pyrochlore iridates journal May 2011
Topological response in Weyl semimetals and the chiral anomaly journal September 2012
Prediction of Weyl semimetal in orthorhombic MoTe 2 journal October 2015
TaIrTe 4 : A ternary type-II Weyl semimetal journal May 2016
Ternary Weyl semimetal NbIrTe 4 proposed from first-principles calculation journal July 2017
Coexistence of tunable Weyl points and topological nodal lines in ternary transition-metal telluride TaIrT e 4 journal June 2018
Observation of superconductivity in the pressurized Weyl-semimetal candidate TaIrT e 4 journal January 2019
Bulk Fermi surface of the Weyl type-II semimetallic candidate NbIrTe 4 journal May 2019
Weyl Semimetal in a Topological Insulator Multilayer journal September 2011
Chern Semimetal and the Quantized Anomalous Hall Effect in HgCr 2 Se 4 journal October 2011
Robust Type-II Weyl Semimetal Phase in Transition Metal Diphosphides X P 2 ( X = Mo , W) journal August 2016
Weyl Semimetal Phase in Noncentrosymmetric Transition-Metal Monophosphides journal March 2015
Experimental Discovery of Weyl Semimetal TaAs journal July 2015
Observation of the Chiral-Anomaly-Induced Negative Magnetoresistance in 3D Weyl Semimetal TaAs journal August 2015
Colloquium: Topological insulators journal November 2010
Topological insulators and superconductors journal October 2011
Experimental observation of Weyl points journal July 2015
Discovery of a Weyl fermion semimetal and topological Fermi arcs journal July 2015
Gate-induced superconductivity in a monolayer topological insulator journal October 2018
Electrically tunable low-density superconductivity in a monolayer topological insulator journal October 2018

Similar Records

Observation of superconductivity in the pressurized Weyl-semimetal candidate TaIrTe4
Journal Article · Tue Jan 08 23:00:00 EST 2019 · Physical Review B · OSTI ID:1611721

Surface superconductivity in the type II Weyl semimetal TaIrTe4
Journal Article · Sun Dec 15 23:00:00 EST 2019 · National Science Review · OSTI ID:1651249

Strong-coupling anisotropic s-wave superconductivity in the type-II Weyl semimetal TaIrTe4
Journal Article · Mon May 17 00:00:00 EDT 2021 · Physical Review. B · OSTI ID:1852381