2019/08/15 by Dong Yan, Yan, Dong, Yijie Zeng +22 · 9 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Chalcogenide #Condensed matter physics #Electrical resistivity and conductivity #FOS: Physical sciences #Iron-based superconductors research #Magnetic field #Magnetization #Materials science #Metallurgy #Physics #Rare-earth and actinide compounds #Selenide #Superconductivity #Superconductivity (cond-mat.supr-con) #Telluride #Ternary operation #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.1908.05438
published in arXiv (Cornell University) (Cornell University) · 25 pages, 6 figures, 2 tables
arxiv created 2019/08/15 · openalex publication_date 2019/08/15 · arxiv updated 2019/08/16 · openalex created_date 2019/08/22 · openalex updated_date 2026/07/28
Here we report the first observation of superconductivity in the AB2X4-type ternary telluride CuIr2Te4, which is synthesized by a solid-state method in an evacuated quartz jacket. It adopts a disordered trigonal structure with space group P3m1 (No. 164), which embodies a two-dimensional IrTe2 layers and intercalated by Cu between the layers. We use a combination of experimental and first principles calculation analysis to look insight into the structural and physical properties. CuIr2Te4 consistently exhibited a bulk superconductivity transition at 2.5 K in electrical resistivity, magnetic susceptibility and specific heat measurements. Resistivity and magnetization measurements suggest a charge density wave transition (TCDW = 250 K) coexists in CuIr2Te4, which further signify the coexistence of superconductivity and CDW in the ternary telluride chalcogenide CuIr2Te4. Our discovery of the new CDW-bearing superconductor CuIr2Te4 opens a door for experimental and theoretical studies of the interplay between CDW and superconductivity quantum state in the condensed matter field.