Structural and electronic phase transitions in FePS$₃$ under the application of pressure

Haines, C. R. S. and Coak, M. J. and Lampronti, Giulio I. and Liu, C. and Hamidov, H. and Wildes, A. R. and Daisenberger, D. and Nahai-Williamson, P. and Saxena, S. S. (2018) Structural and electronic phase transitions in FePS$₃$ under the application of pressure. > cond-mat > arXiv:1801.10089.

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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 FePS$₃$ . This compound is a two-dimensional van-der-Waals antiferromagnetic Mott insulator. Here 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 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
Additional Information: 9 pages, 12 figures
Uncontrolled Keywords: NILAREP, IA73
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
08 - Green Open Access
Journal or Publication Title: > cond-mat > arXiv:1801.10089
Depositing User: Sarah Humbert
Date Deposited: 07 Jan 2019 21:49
Last Modified: 07 Jan 2019 21:49

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