From Insulator to Superconductor: A Series of Pressure-Driven Transitions in Quasi-One-Dimensional TiS3 Nanoribbons

• DOI: 10.1021/acs.nanolett.4c00824
• Publication Date: 2024-04-29T11:57:05Z
• Authors: Mahmoud Abdel-Hafiez; Li Fen Shi; Jinguang Cheng; Irina G. Gorlova; Sergey G. Zybtsev; Vadim Ya. Pokrovskii; Lingyi Ao; Junwei Huang; Hongtao Yuan; Alexsandr N. Titov; Olle Eriksson; Chin Shen Ong
• Keywords: Ambient pressure; Superconducting transition temperature

Transition metal trichalcogenides (TMTCs) offer remarkable opportunities for tuning electronic states through modifications in chemical composition, temperature, and pressure. Despite considerable interest TMTCs, there remain significant knowledge gaps concerning the evolution of their properties under compression. In this study, we employ experimental theoretical approaches to comprehensively explore high-pressure behavior TiS3, a quasi-one-dimensional (Q1D) semiconductor, across various temperature ranges. Through electrical resistance magnetic measurements at elevated pressures, uncover distinctive sequence phase transitions within encompassing transformation from an insulating state ambient pressure emergence incipient superconducting above 70 GPa. Our findings provide compelling evidence that superconductivity low temperatures ∼2.9 K is fundamental characteristic shedding new light on intriguing TiS3 underscoring broader implications our discoveries TMTCs general.