Type II superconducting parameters of Tl-doped PbTe determined from heat capacity and electronic transport measurements
Journal Article
·
· Physical Review B
OSTI ID:972654
Tl-doped PbTe (Pb{sub 1-x}Tl{sub x}Te) is an anomalous superconductor with a remarkably high maximum T{sub c} value given its relatively low carrier concentration. Here, we present results of systematic measurements of superconducting parameters for this material, for Tl concentrations up to x=1.4%. We find that it is a type II, weak-coupled BCS superconductor in the dirty limit and discuss implications for the applicability of the charge Kondo model recently proposed to account for superconductivity in this system.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 972654
- Report Number(s):
- SLAC-REPRINT-2010-037
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 13 Vol. 74; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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