Full superconducting gap in the candidate topological superconductor In1−xPbxTe for x=0.2
M. P. Smylie, Kaya Kobayashi, J. Z. Dans, H. Hebbeker, R. Chapai, W.-K. Kwok, U. Welp
DOI 10.1103/PhysRevB.106.054503 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
High-pressure synthesis techniques have allowed for the growth of samples on the indium-rich side of (Pb,In)Te, which have increased superconducting transition temperatures compared to lead-rich compounds. In this paper we present measurements of the temperature dependence of the London penetration depth Δλ(T) in the compound In0.8Pb0.2Te, which shows a bulk Tc,onset of ∼4.75 K. The results indicate fully gapped BCS-like behavior, ruling out odd-parity topologically nontrivial A2u pairing, however, odd-parity A1u pairing is still possible. Critical field values measured below 1 K and other superconducting parameters are also presented.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| In0.8Pb0.2Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.75 | Pressure not reported | onset |
| In0.8Pb0.2Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.5 | Pressure not reported | onset |
| In0.8Pb0.2Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.69 | Pressure not reported | onset |
| InTe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.18 | Pressure not reported | unknown |
| InTe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3 | Pressure not reported | onset |
Similar papers
Fully gapped superconductivity in In-doped topological crystalline insulator Pb0.5Sn0.5Te
similarity 0.94Guan Du et al.
Source status unknown — claims are unverified
Tailoring band structure and band filling in a simple cubic (IV, III)-VI superconductor
similarity 0.93M. Kriener et al.
Source status unknown — claims are unverified
Full superconducting gap in the candidate topological superconductor InPbTe for x = 0.2
similarity 0.93M. P. Smylie et al. · 2022 · arXiv:2204.07635
Source status unknown — claims are unverified
Superconductivity in electron-doped PbBi2Te4
similarity 0.92Xianghan Xu et al.
Source status unknown — claims are unverified
Unusual nature of fully gapped superconductivity in In-doped SnTe
similarity 0.91Mario Novak et al.
Source status unknown — claims are unverified
Full superconducting gap in the doped topological crystalline insulator Sn0.6In0.4Te
similarity 0.91L. P. He et al.
Source status unknown — claims are unverified