Specific Heat and Electrical Transport Properties of Sn0.8Ag0.2Te Superconductor

Abstract

Sn0.8Ag0.2Te is a new superconductor with Tc ~ 2.4 K. The superconducting properties of Sn0.8Ag0.2Te have been investigated by specific heat measurements under magnetic fields. Bulk nature of superconductivity was confirmed from the amplitude of the specific heat jump at the superconducting transition, and the amplitude is consistent with fully-gapped superconductivity. Upper critical field was estimated from specific heat and electrical resistivity measurements under magnetic fields. The Hall coefficient was positive, suggesting that the Ag acts as a p-type dopant in Sn0.8Ag0.2Te.

11 pages, 5 figures

References in corpus (6)

• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Topological Crystalline Insulators
• Bulk superconducting phase with a full energy gap in the doped topological insulator Cu_xBi_2Se_3
• Odd-Parity Pairing and Topological Superconductivity in a Strongly Spin-Orbit Coupled Semiconductor
• Enhanced superconducting pairing interaction in indium-doped tin telluride
• Superconducting properties of the In substituted Topological Crystalline Insulator, SnTe