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Title: Evidence of Incoherent Carriers Associated with Resonant Impurity Levels and Their Influence on Superconductivity in the Anomalous Superconductor Pb 1 - x Tl x Te

Abstract

We present a combined experimental and theoretical study of the evolution of the Fermi surface of the anomalous superconductor Pb 1-xTl xTe as a function of thallium concentration, drawing on a combination of magnetotransport measurements (Shubnikov–de Haas oscillations and the Hall coefficient), angle resolved photoemission spectroscopy, and density functional theory calculations of the electronic structure. Our results indicate that for Tl concentrations beyond a critical value, the Fermi energy coincides with resonant impurity states in Pb 1-xTl xTe , and we rule out the presence of an additional valence band maximum at the Fermi energy. Finally, a comparison to nonsuperconducting Pb 1-xNa xTe implies that the presence of these impurity states at the Fermi energy provides the enhanced pairing interaction and thus also the anomalously high temperature superconductivity in this material.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [6];  [7];  [3];  [7];  [6];  [2]
  1. Stanford Univ., CA (United States). Geballe Lab. for Advanced Materials and Dept. of Physics; Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab); Univ. de Los Andes, Bogota (Colombia)
  2. Stanford Univ., CA (United States). Geballe Lab. for Advanced Materials and Dept. of Applied Physics
  3. Federal Inst. of Technology, Zurich (Switzerland). Materials Theory
  4. Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  6. Ecole Superieure de Physique et de Chimie Industrielles, Rue Vauquelin, Paris (France). LPEM (UPMC-CNRS)
  7. Ames Lab. and Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF); European Union (EU)
OSTI Identifier:
1487219
Alternate Identifier(s):
OSTI ID: 1481940; OSTI ID: 1505999
Report Number(s):
IS-J-9824; LA-UR-17-30756
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:  
FA9550-09-1-0583; 291151; DMR-1157490; AC02-05CH11231; AC02-07CH11358; 228043; 89233218CNA000001
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 121; Journal Issue: 20; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Giraldo-Gallo, P., Walmsley, P., Sangiorgio, B., Riggs, S. C., McDonald, R. D., Buchauer, L., Fauqué, B., Liu, Chang, Spaldin, N. A., Kaminski, A., Behnia, K., and Fisher, I. R.. Evidence of Incoherent Carriers Associated with Resonant Impurity Levels and Their Influence on Superconductivity in the Anomalous Superconductor Pb1-xTlxTe. United States: N. p., 2018. Web. doi:10.1103/physrevlett.121.207001.
Giraldo-Gallo, P., Walmsley, P., Sangiorgio, B., Riggs, S. C., McDonald, R. D., Buchauer, L., Fauqué, B., Liu, Chang, Spaldin, N. A., Kaminski, A., Behnia, K., & Fisher, I. R.. Evidence of Incoherent Carriers Associated with Resonant Impurity Levels and Their Influence on Superconductivity in the Anomalous Superconductor Pb1-xTlxTe. United States. doi:10.1103/physrevlett.121.207001.
Giraldo-Gallo, P., Walmsley, P., Sangiorgio, B., Riggs, S. C., McDonald, R. D., Buchauer, L., Fauqué, B., Liu, Chang, Spaldin, N. A., Kaminski, A., Behnia, K., and Fisher, I. R.. Tue . "Evidence of Incoherent Carriers Associated with Resonant Impurity Levels and Their Influence on Superconductivity in the Anomalous Superconductor Pb1-xTlxTe". United States. doi:10.1103/physrevlett.121.207001.
@article{osti_1487219,
title = {Evidence of Incoherent Carriers Associated with Resonant Impurity Levels and Their Influence on Superconductivity in the Anomalous Superconductor Pb1-xTlxTe},
author = {Giraldo-Gallo, P. and Walmsley, P. and Sangiorgio, B. and Riggs, S. C. and McDonald, R. D. and Buchauer, L. and Fauqué, B. and Liu, Chang and Spaldin, N. A. and Kaminski, A. and Behnia, K. and Fisher, I. R.},
abstractNote = {We present a combined experimental and theoretical study of the evolution of the Fermi surface of the anomalous superconductor Pb1-xTlxTe as a function of thallium concentration, drawing on a combination of magnetotransport measurements (Shubnikov–de Haas oscillations and the Hall coefficient), angle resolved photoemission spectroscopy, and density functional theory calculations of the electronic structure. Our results indicate that for Tl concentrations beyond a critical value, the Fermi energy coincides with resonant impurity states in Pb1-xTlxTe , and we rule out the presence of an additional valence band maximum at the Fermi energy. Finally, a comparison to nonsuperconducting Pb1-xNaxTe implies that the presence of these impurity states at the Fermi energy provides the enhanced pairing interaction and thus also the anomalously high temperature superconductivity in this material.},
doi = {10.1103/physrevlett.121.207001},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 20,
volume = 121,
place = {United States},
year = {2018},
month = {11}
}

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Works referenced in this record:

Projector augmented-wave method
journal, December 1994


From ultrasoft pseudopotentials to the projector augmented-wave method
journal, January 1999


Enhancement of Thermoelectric Efficiency in PbTe by Distortion of the Electronic Density of States
journal, July 2008

  • Heremans, J. P.; Jovovic, V.; Toberer, E. S.
  • Science, Vol. 321, Issue 5888, p. 554-557
  • DOI: 10.1126/science.1159725

Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set
journal, October 1996