2017/05/09 by Shanshan Sun, Shaohua Wang, Rong Yu +1 · 45 citations
Chemistry · Materials Science · Physics and Astronomy · #Anisotropy #Chemistry #Condensed matter physics #Crystallography #Doping #Electron #Iron-based superconductors research #Materials science #Physics #Quantum mechanics #Rare-earth and actinide compounds #Relaxation (psychology) #Superconductivity #Superconductivity in MgB2 and Alloys #cond-mat.mtrl-sci #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.96.064512
published in Physical review. B./Physical review. B 96(6) (American Physical Society) · 8 pages, 5 figures
arxiv created 2017/05/09 · openalex created_date 2017/05/19 · openalex publication_date 2017/08/11 · arxiv updated 2017/08/16 · openalex updated_date 2026/08/05
We report the growth of heavily electron doped Li-NH3 intercalated FeSe single crystals that are free of material complexities and allow access to the intrinsic superconducting properties. Lix(NH3)yFe2Se2 single crystals show extremely large electronic anisotropy in both normal and superconducting states. They also exhibit anomalous transport properties in the normal state, which are believed to possibly be related to the anisotropy of relaxation time and/or temperature-dependent electron carrier concentration. Taking into account the great chemical flexibility of intercalants in the system, our findings provide a platform to understanding the origin of superconductivity in FeSe-related superconductors.