2016/12/19 by N. D. Kushch, Kushch, N. D., O. M. Vyaselev +18
Materials Science · Physics and Astronomy · #2D Materials and Applications #Magnetism in coordination complexes #Organic and Molecular Conductors Research #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.1612.06188
16 pages, 3 tables, 11 figures
arxiv created 2017/02/07 · arxiv updated 2017/02/08
A new metallic radical cation salt κ-(BETS)2Co0.13Mn0.87[N(CN)2]3, where BETS is bis(ethylenedithio)tetraselenafulvalene, C10S4Se4H8, has been synthesized. In this salt, a part of Mn2+ ions are replaced by Co2+ which acts as a magnetic dopant with a different effective magnetic moment. Crystal structure, band structure, conducting and magnetic properties of the salt have been studied. Below 30 K the material undergoes a metal-insulator transition, which is suppressed by applying a pressure of ~0.5kbar, leading to a superconducting ground state. While the structural and conducting properties are very similar to those of the parent salt κ-(BETS)2Mn[N(CN)2]3, magnetic properties associated with localized moments in the anion layer are found to be surprisingly different.