This article is cited in 3 papers

CONDENSED MATTER

Pressure-induced semiconductor-semimetal transition in Rb$_{0.8}$Fe$_{1.6}$S$_2$

A. O. Baskakov^a, Yu. L. Ogarkova^a, I. S. Lyubutin^a, S. S. Starchikov^a, V. A. Ksenofontov^b, S. I. Shilin^b, D. Kroitor'^c, V. Tsurkan^dc, S. A. Medvedev^e, P. G. Naumov<sup>ea

a</sup> Shubnikov Institute of Crystallography, Federal Scientific Research Centre Crystallography and Photonics, Russian Academy of Sciences, Moscow, Russia
^b Institute for Inorganic and Analytical Chemistry, Johannes Gutenberg University Mainz, Mainz, Germany
^c Institute of Applied Physics, Chisinau, Republic of Moldova
^d Experimental Physics V, Center for Electronic Correlations and Magnetism, University of Augsburg, Augsburg, Germany
^e Max-Planck-Institute for Chemical Physics of Solids, Dresden, Germany

Abstract: The transport and magnetic properties of the Rb$_{0.8}$Fe$_{1.6}$S$_2$ 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 Rb$_{0.8}$Fe$_{1.6}$S$_2$, superconductivity in Rb$_{0.8}$Fe$_{1.6}$S$_2$ sulfide does not appear down to the lowest temperatures even at an external pressure of 40.5 GPa.

Received: 25.02.2019
Revised: 25.02.2019
Accepted: 27.02.2019

DOI: 10.1134/S0370274X19080101

 English version: Journal of Experimental and Theoretical Physics Letters, 2019, 109:8, 536–540

Bibliographic databases:

• 
• 
•