skip to main content

DOE PAGESDOE PAGES

This content will become publicly available on January 19, 2019

Title: Superconductivity, pairing symmetry, and disorder in the doped topological insulator Sn 1 - x In x Te for x 0.10

The temperature dependence of the London penetration depth Δλ(T) in the superconducting doped topological crystalline insulator Sn 1-xIn x Te was measured down to 450 mK for two different doping levels, x ≈ 0.45 (optimally doped) and x ≈ 0.10 (underdoped), bookending the range of cubic phase in the compound. The results indicate no deviation from fully gapped BCS-like behavior, eliminating several candidate unconventional gap structures. Critical field values below 1 K and other superconducting parameters are also presented. The introduction of disorder by repeated particle irradiation with 5 MeV protons does not enhance T c, indicating that ferroelectric interactions do not compete with superconductivity.
Authors:
 [1] ;  [2] ;  [2] ;  [3] ;  [3] ;  [4] ;  [5] ;  [5] ;  [6] ;  [7] ;  [7] ;  [7] ;  [8] ;  [2] ;  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Notre Dame, IN (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Univ. of Notre Dame, IN (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  5. Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., NY (United States)
  6. Brookhaven National Lab. (BNL), Upton, NY (United States)
  7. Western Michigan Univ., Kalamazoo MI (United States)
  8. Inst. Laue-Langevin (ILL), Grenoble (France)
Publication Date:
Report Number(s):
BNL-200080-2018-JAAM
Journal ID: ISSN 2469-9950; PRBMDO; TRN: US1802024
Grant/Contract Number:
SC0012704; SC0005051; AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 97; Journal Issue: 2; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1425063
Alternate Identifier(s):
OSTI ID: 1417506; OSTI ID: 1432141

Smylie, M. P., Claus, H., Kwok, W. -K., Louden, E. R., Eskildsen, M. R., Sefat, A. S., Zhong, R. D., Schneeloch, J., Gu, G. D., Bokari, E., Niraula, P. M., Kayani, A., Dewhurst, C. D., Snezhko, A., and Welp, U.. Superconductivity, pairing symmetry, and disorder in the doped topological insulator Sn1-xInxTe for x≥0.10. United States: N. p., Web. doi:10.1103/PhysRevB.97.024511.
Smylie, M. P., Claus, H., Kwok, W. -K., Louden, E. R., Eskildsen, M. R., Sefat, A. S., Zhong, R. D., Schneeloch, J., Gu, G. D., Bokari, E., Niraula, P. M., Kayani, A., Dewhurst, C. D., Snezhko, A., & Welp, U.. Superconductivity, pairing symmetry, and disorder in the doped topological insulator Sn1-xInxTe for x≥0.10. United States. doi:10.1103/PhysRevB.97.024511.
Smylie, M. P., Claus, H., Kwok, W. -K., Louden, E. R., Eskildsen, M. R., Sefat, A. S., Zhong, R. D., Schneeloch, J., Gu, G. D., Bokari, E., Niraula, P. M., Kayani, A., Dewhurst, C. D., Snezhko, A., and Welp, U.. 2018. "Superconductivity, pairing symmetry, and disorder in the doped topological insulator Sn1-xInxTe for x≥0.10". United States. doi:10.1103/PhysRevB.97.024511.
@article{osti_1425063,
title = {Superconductivity, pairing symmetry, and disorder in the doped topological insulator Sn1-xInxTe for x≥0.10},
author = {Smylie, M. P. and Claus, H. and Kwok, W. -K. and Louden, E. R. and Eskildsen, M. R. and Sefat, A. S. and Zhong, R. D. and Schneeloch, J. and Gu, G. D. and Bokari, E. and Niraula, P. M. and Kayani, A. and Dewhurst, C. D. and Snezhko, A. and Welp, U.},
abstractNote = {The temperature dependence of the London penetration depth Δλ(T) in the superconducting doped topological crystalline insulator Sn1-xInx Te was measured down to 450 mK for two different doping levels, x ≈ 0.45 (optimally doped) and x ≈ 0.10 (underdoped), bookending the range of cubic phase in the compound. The results indicate no deviation from fully gapped BCS-like behavior, eliminating several candidate unconventional gap structures. Critical field values below 1 K and other superconducting parameters are also presented. The introduction of disorder by repeated particle irradiation with 5 MeV protons does not enhance Tc, indicating that ferroelectric interactions do not compete with superconductivity.},
doi = {10.1103/PhysRevB.97.024511},
journal = {Physical Review B},
number = 2,
volume = 97,
place = {United States},
year = {2018},
month = {1}
}