Pressure-induced electronic and structural phase evolution in the van der Waals compound FePS3

Haines, C. R. S., Coak, Matthew J., Wildes, Andrew R., Lampronti, Giulio I., Liu, Cheng, Nahai-Williamson, Paul, Hamidov, Hayrullo, Daisenberger, Dominik and Saxena, Siddharth S. (2018) Pressure-induced electronic and structural phase evolution in the van der Waals compound FePS3. Physical Review Letters, 121. ISSN 0031-9007

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Abstract

Two-dimensional materials have proven to be a prolific breeding ground of new and unstudied forms of magnetism and unusual metallic states, particularly when tuned between their insulating and metallic phases. In this paper we present work on a new metal to insulator transition system FePS3 . This compound is a two-dimensional van-der-Waals antiferromagnetic Mott insulator. Here we report the discovery of an insulator-metal transition in FePS3, as evidenced by x-ray diffraction and electrical transport measurements, using high pressure as a tuning parameter. Two structural phase transitions are observed in the x-ray diffraction data as a function of pressure and resistivity measurements show evidence of the onset of a metallic state at high pressures. We propose models for the two new structures that can successfully explain the x-ray diffraction patterns.

Item Type: Article
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Depositing User: LivePure Connector
Date Deposited: 27 Oct 2021 02:24
Last Modified: 07 Dec 2021 17:35
URI: https://ueaeprints.uea.ac.uk/id/eprint/81884
DOI: 10.1103/physrevlett.121.266801

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