Pressure-induced superconductivity in SnSb2Te4

Peng Song; Ryo Matsumoto; Zhufeng Hou; Shintaro Adachi; Hiroshi Hara; Yoshito Saito; P B Castro; Hiroyuki Takeya; Yoshihiko Takano

doi:10.1088/1361-648X/ab76e2

Pressure-induced superconductivity in SnSb₂Te₄

J Phys Condens Matter. 2020 May 27;32(23):235901. doi: 10.1088/1361-648X/ab76e2.

Authors

Peng Song¹, Ryo Matsumoto, Zhufeng Hou, Shintaro Adachi, Hiroshi Hara, Yoshito Saito, P B Castro, Hiroyuki Takeya, Yoshihiko Takano

Affiliation

¹ International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan. University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan.

PMID: 32066132
DOI: 10.1088/1361-648X/ab76e2

Abstract

Here we firstly report the pressure-induced superconductivity in phase change materials SnSb₂Te₄. Single crystals of SnSb₂Te₄ were grown using a conventional melting-down method. The resistance under pressure was measured using an originally designed diamond anvil cell with boron-doped diamond electrodes. The temperature dependence of the resistance under different pressures has been measured up to 32.6 GPa. The superconducting transition of SnSb₂Te₄ appeared at 2.1 K ([Formula: see text]) under 8.1 GPa, which was further increased with applied pressure to a maximum onset transition temperature 7.4 K under 32.6 GPa.