High-pressure synthesis of superconducting Sn${}_3$S${}_4$ using diamond anvil cell with boron-doped diamond heater

Abstract

High-pressure techniques open exploration of functional materials in broad research fields. An established diamond anvil cell with a boron-doped diamond heater and transport measurement terminals has performed the high-pressure synthesis of a cubic Sn${}_3$S${}_4$ superconductor. X-ray diffraction and Raman spectroscopy reveal that the Sn${}_3$S${}_4$ phase is stable in the pressure range of P>5 GPa in a decompression process. Transport measurement terminals in the diamond anvil cell detect a metallic nature and superconductivity in the synthesized Sn${}_3$S${}_4$ with a maximum onset transition temperature of 13.3 K at 5.6 GPa. The observed pressure-T${}_c$ relationship is consistent with that from the first-principles calculation. The observation of superconductivity in Sn${}_3$S${}_4$ opens further materials exploration under high temperature and pressure conditions.

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Cited by in corpus (2)

• High gas pressure and high-temperature synthesis (HP-HTS) technique and its impact on iron-based superconductors
• Emergence of Superconductivity at 20 K in Th${}_3$P${}_4$-type In${}_{3-x}$S${}_4$ Synthesized by Diamond Anvil Cell with Boron-doped Diamond Electrodes