Maqola

Pressure-Induced Electronic and Structural Phase Evolution in the van der Waals Compound<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>FePS</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

Charles R. S. HainesCavendish Laboratory, Cambridge University, J.J. Thomson Ave, Cambridge CB3 0HE, United Kingdom and Department of Earth Sciences, Cambridge University, Downing Street, Cambridge CB2 3EQ, United KingdomMatthew CoakCavendish Laboratory, Cambridge University, J.J. Thomson Ave, Cambridge CB3 0HE, United Kingdom, Center for Correlated Electron Systems, Institute for Basic Science, Seoul 08826, Republic of Korea, and Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of KoreaAndrew WildesCavendish Laboratory, Cambridge University, J.J. Thomson Ave, Cambridge CB3 0HE, United Kingdom and Department of Earth Sciences, Cambridge University, Downing Street, Cambridge CB2 3EQ, United KingdomGiulio LamprontiDepartment of Earth Sciences, Cambridge University, Downing Street, Cambridge CB2 3EQ, United KingdomCheng LiuCavendish Laboratory, Cambridge University, J.J. Thomson Ave, Cambridge CB3 0HE, United KingdomPaul Nahai-WilliamsonCavendish Laboratory, Cambridge University, J.J. Thomson Ave, Cambridge CB3 0HE, United KingdomH. HamidovCavendish Laboratory, Cambridge University, J.J. Thomson Ave, Cambridge CB3 0HE, United Kingdom and Department of Earth Sciences, Cambridge University, Downing Street, Cambridge CB2 3EQ, United KingdomDominik DaisenbergerDiamond Light Source, Chilton, Didcot OX11 0DE, United KingdomSiddharth SaxenaCavendish Laboratory, Cambridge University, J.J. Thomson Ave, Cambridge CB3 0HE, United Kingdom and Department of Earth Sciences, Cambridge University, Downing Street, Cambridge CB2 3EQ, United Kingdom

Physical Review Lettersjournal2018lv

Ochiq kirishYashil

ABI

Annotatsiya

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. Here we present work on a new metal-to-insulator transition system FePS_{3}. This compound is a two-dimensional van der Waals antiferromagnetic Mott insulator. We report the discovery of an insulator-metal transition in FePS_{3}, 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.

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Mavzular

High-pressure geophysics and materials Boron and Carbon Nanomaterials Research Advanced Chemical Physics Studies

Identifikatorlar

DOI: 10.1103/physrevlett.121.266801

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