2017/03/24 by Saleem J. Denholme, Akinori Yukawa, Kohei Tsumura +6
Materials Science · Physics and Astronomy · #2D Materials and Applications #Anomaly (physics) #Charge density wave #Electrical resistivity and conductivity #Hydrostatic pressure #Iron-based superconductors research #Organic and Molecular Conductors Research #Phase (matter) #Resistive touchscreen #Rietveld refinement #Superconductivity #cond-mat.supr-con
paper · pdf · doi:10.1038/srep45217
published as Scientific Reports 7, Article number: 45217 (2017) · 9 pages, 4 figures, includes supplementary information
openalex publication_date 2017/03/24 · openalex created_date 2017/04/07 · arxiv created 2017/11/29 · arxiv updated 2017/11/30 · openalex updated_date 2026/08/05
Abstract We present the first experimental evidence for metallicity, superconductivity (SC) and the co-existence of charge density waves (CDW) in the quasi-one-dimensional material HfTe 3 . The existence of such phenomena is a typical characteristic of the transition metal chalcogenides however, without the application of hydrostatic pressure/chemical doping, it is rare for a material to exhibit the co-existence of both states. Materials such as HfTe 3 can therefore provide us with a unique insight into the relationship between these multiple ordered states. By improving on the original synthesis conditions, we have successfully synthesised single phase HfTe 3 and confirmed the resultant structure by performing Rietveld refinement. Using low temperature resistivity measurements, we provide the first experimental evidence of SC at ~1.4 K as well as a resistive anomaly indicative of a CDW formation at ~82 K. By the application of hydrostatic-pressure, the resistivity anomaly shifts to higher temperature. The results show that HfTe 3 is a promising new material to help study the relationship between SC and CDW.