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Pressure-Induced Semiconductor-Semimetal Transition in Rb0.8Fe1.6S2

MetadataDetails
Publication Date2019-04-01
JournalJournal of Experimental and Theoretical Physics Letters
AuthorsА. Šž. Баскаков, Yu. L. Ogarkova, I. S. Lyubutin, S. S. Starchikov, Vadim Ksenofontov
InstitutionsRussian Academy of Sciences, Max Planck Institute for Chemical Physics of Solids
Citations3

The transport and magnetic properties of the Rb0.8Fe1.6S2 crystal have been studied under quasihydrostatic compression to a pressure of 40.5 GPa in diamond anvil cells. A semiconductor-semimetal electronic transition has been detected at a pressure of about 15 GPa. In addition, the disappearance of the magnetic order down to a temperature of 3 K has been found at a pressure of 24 GPa. It has been shown that, in contrast to a similar selenium compound Rb0.8Fe1.6Se2, superconductivity in Rb0.8Fe1.6S2 sulfide does not appear down to the lowest temperatures even at an external pressure of 40.5 GPa.