NbS${}_3$: A unique quasi one-dimensional conductor with three charge density wave transitions

Abstract

Through transport, compositional and structural studies, we review the features of the charge-density wave (CDW) conductor of NbS${}_3$ (phase II). We highlight three central results: 1) In addition to the previously reported CDW transitions at $T_{P1}$ = 360\,K and $T_{P2}$ = 150\,K, another CDW transition occurs at a much higher temperature $T_{P0}$ = 620-650\,K; evidence for the non-linear conductivity of this CDW is presented. 2) We show that CDW associated with the $T_{P2}$ - transition arises from S vacancies acting as donors. Such a CDW transition has not been observed before. 3) We show exceptional coherence of the $T_{P1}$-CDW at room-temperature. Additionally, we report on the effects of uniaxial strain on the CDW transition temperatures and transport.

16 pages, 18 figures

References in corpus (4)

• Titanic Magnetoresistance in WTe2
• TiS3 transistors with tailored morphology and electrical properties
• One-dimensional conduction in Charge-Density Wave nanowires
• Vacancy Formation and Oxidation Characteristics of Single Layer TiS3

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• Insulator-to-superconductor transition in quasi-one-dimensional HfS3 under pressure
• Charge Transport in Electronic Devices Printed with Inks of Quasi-1D van der Waals Materials