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Title: Nodeless Superconducting Gap in the Candidate Topological Superconductor Sn{sub 1-x}In{sub x}Te for x=0.7.

Abstract

High-pressure synthesis techniques have allowed for the growth of Sn1-xInxTe samples beyond the ambient In-saturation limit of x = 0.5 (T-c similar to 4.5 K). In this study we present measurements of the temperature dependence of the London penetration depth Delta lambda(T) in this superconducting doped topological insulator for x = 0.7, where T-c(,onset) approximate to 5 K. The results indicate fully gapped BCS-like behavior, ruling out odd-parity A(2u), pairing; however, odd-parity A(1u) in pairing is still possible. Critical field values measured below 1 K and other superconducting parameters are also presented.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Basic Energy Sciences - Materials Sciences and Engineering Division; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan
OSTI Identifier:
1608297
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 101; Journal Issue: 9
Country of Publication:
United States
Language:
English

Citation Formats

Smylie, M. P., Kobayashi, Kaya, Takahashi, T., Chaparro, C., Snezhko, A., Kwok, W. -K., and Welp, U. Nodeless Superconducting Gap in the Candidate Topological Superconductor Sn{sub 1-x}In{sub x}Te for x=0.7.. United States: N. p., 2020. Web. doi:10.1103/PhysRevB.101.094513.
Smylie, M. P., Kobayashi, Kaya, Takahashi, T., Chaparro, C., Snezhko, A., Kwok, W. -K., & Welp, U. Nodeless Superconducting Gap in the Candidate Topological Superconductor Sn{sub 1-x}In{sub x}Te for x=0.7.. United States. https://doi.org/10.1103/PhysRevB.101.094513
Smylie, M. P., Kobayashi, Kaya, Takahashi, T., Chaparro, C., Snezhko, A., Kwok, W. -K., and Welp, U. Fri . "Nodeless Superconducting Gap in the Candidate Topological Superconductor Sn{sub 1-x}In{sub x}Te for x=0.7.". United States. https://doi.org/10.1103/PhysRevB.101.094513.
@article{osti_1608297,
title = {Nodeless Superconducting Gap in the Candidate Topological Superconductor Sn{sub 1-x}In{sub x}Te for x=0.7.},
author = {Smylie, M. P. and Kobayashi, Kaya and Takahashi, T. and Chaparro, C. and Snezhko, A. and Kwok, W. -K. and Welp, U.},
abstractNote = {High-pressure synthesis techniques have allowed for the growth of Sn1-xInxTe samples beyond the ambient In-saturation limit of x = 0.5 (T-c similar to 4.5 K). In this study we present measurements of the temperature dependence of the London penetration depth Delta lambda(T) in this superconducting doped topological insulator for x = 0.7, where T-c(,onset) approximate to 5 K. The results indicate fully gapped BCS-like behavior, ruling out odd-parity A(2u), pairing; however, odd-parity A(1u) in pairing is still possible. Critical field values measured below 1 K and other superconducting parameters are also presented.},
doi = {10.1103/PhysRevB.101.094513},
url = {https://www.osti.gov/biblio/1608297}, journal = {Physical Review B},
number = 9,
volume = 101,
place = {United States},
year = {2020},
month = {3}
}

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