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강상관계 물질 연구단
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Pressure-Induced Electronic and Structural Phase Evolution in the van der Waals Compound FePS3

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Title
Pressure-Induced Electronic and Structural Phase Evolution in the van der Waals Compound FePS3
Author(s)
C. R. S. Haines; M. J. Coak; A. R. Wildes; G. I. Lampronti; C. Liu; P. Nahai-Williamson; H. Hamidov; D. Daisenberger; S. S. Saxena
Publication Date
2018-12
Journal
PHYSICAL REVIEW LETTERS, v.121, no.26, pp.266801 -
Publisher
AMER PHYSICAL SOC
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. Here we present work on a new metal-to-insulator transition system FePS3. This compound is a two-dimensional van der Waals antiferromagnetic Mott insulator. We report the discovery of an insulatormetal 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. © 2018 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/6538
ISSN
0031-9007
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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