Superconductivity in epitaxial PtSb(0001) thin films
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
Building on earlier reports of superconductivity in bulk PtSb, we present a systematic study of superconductivity in epitaxial PtSb(0001) thin films grown on SrF2(111). Electrical transport measurements reveal a superconducting transition at Tc=1.72K. The field-induced broadening of the transition and the temperature dependence of the upper critical fields are consistent with type-II superconductivity. We determine the upper critical fields for magnetic fields applied perpendicular and parallel to the film plane and parametrize their temperature dependence using an anisotropic Ginzburg-Landau approach. For a representative film in the intermediate thickness regime (d=50nm), we obtain coherence lengths of ξab≈56nm and ξc≈14nm. Current-voltage characteristics show sizable critical currents, with a critical current density reaching Jc≈6×104A/cm2 at 0.5K. These results establish the superconducting properties of epitaxial PtSb thin films and provide a basis for lattice-matched heterostructures within the NiAs-type materials family.
Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 094801 |
| Fachzeitschrift | Physical review materials |
| Jahrgang | 10 |
| Ausgabenummer | 9 |
| Publikationsstatus | Veröffentlicht - 1 Sept. 2026 |
| Peer-Review-Status | Ja |