Allotropic transition of Dirac semimetal {\alpha}-Sn to superconductor {\beta}-Sn induced by irradiation of focused ion beam

• Published in: arXiv.org
• Main Authors: Inagaki, Kohdai, Ishihara, Keita, Hotta, Tomoki, Seki, Yuichi, Takeda, Takahito, Ishida, Tatsuhiro, Ootsuki, Daiki, Kawasaki, Ikuto, Fujimori, Shin-ichi, Tanaka, Masaaki, Le, Duc Anh, Kobayashi, Masaki
• Format: Paper
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 01.10.2023
• Subjects: Allotropy; Alpha rays; Diamonds; Heterostructures; Ion beams; Irradiation; Low temperature; Metallicity; Phase transitions; Photoelectric emission; Side effects; Superconductivity; Thin films; X ray photoelectron spectroscopy

Diamond-type structure allotrope {\alpha}-Sn is attracting much attention as a topological Dirac semimetal (TDS). In this study, we demonstrate that {\alpha}-Sn undergoes a phase transition to another allotrope {\beta}-Sn with superconductivity at low temperature by irradiating with a focused Ga ion...