Superconducting properties of the In substituted Topological Crystalline Insulator, SnTe

Abstract

We report detailed investigations of the properties of a superconductor obtained by substituting In at the Sn site in the topological crystalline insulator (TCI), SnTe. Transport, magnetization and heat capacity measurements have been performed on crystals of Sn0.6In0.4Te, which is shown to be a bulk superconductor with Tc(onset) at ~4.70(5) K and Tc(zero) at ~3.50(5) K. The upper and lower critical fields are estimated to be μ0Hc2(0) = 1.42(3) T and μ0Hc1(0) = 0.90(3) mT respectively, while κ = 56.4(8) indicates this material is a strongly type II superconductor.

5 pages, 4 figures, to appear in Physical Review B (Rapid Communications)

References in corpus (3)

• Topological Crystalline Insulators
• Odd-Parity Pairing and Topological Superconductivity in a Strongly Spin-Orbit Coupled Semiconductor
• Enhanced superconducting pairing interaction in indium-doped tin telluride

Cited by in corpus (19)

• A comprehensive review on topological superconducting materials and interfaces
• Exploring Topological Superconductivity in Topological Materials
• Revealing surface states in In-doped SnTe superconducting nanoplates with low bulk mobility
• Topological Crystalline Insulator Nanostructures
• Superconducting doped topological materials
• Superconductivity induced by In substitution into the topological crystalline insulator Pb(0.5)Sn(0.5)Te
• Indium substitution effect on the topological crystalline insulator family (Pb${}_{1-x}$Sn${}_x$)${}_{1-y}$In${}_y$Te: Topological and superconducting properties
• Studies of the superconducting properties of Sn1-xInxTe (x=0.38 to 0.45) using muon-spin spectroscopy
• Unexpected superconductivity at nanoscale junctions made on the topological crystalline insulator Pb${}_{0.6}$Sn${}_{0.4}$Te
• Observation of coexisting weak localization and superconducting fluctuations in strained Sn1-xInxTe thin films
• Corner states, hinge states and Majorana modes in SnTe nanowires
• Superconductivity, pairing symmetry, and disorder in the doped topological insulator Sn${}_{1-x}$In${}_x$Te for x $\ge$ 0.10
• Observation of Weyl and Dirac fermions at smooth topological Volkov-Pankratov heterojunctions
• Superconductivity by alloying the topological insulator SnBi2Te4
• Versatile electronic states in epitaxial thin films of (Sn-Pb-In)Te: from topological crystalline insulator and polar semimetal to superconductor
• Specific Heat and Electrical Transport Properties of Sn0.8Ag0.2Te Superconductor
• Low-energy phonons and superconductivity in Sn${}_{0.8}$In${}_{0.2}$Te
• Estimation of Grüneisen parameter of high-entropy-alloy-type functional materials
• Superconductivity in In-doped AgPbBiTe3 compounds synthesized by high-pressure synthesis