Comparative structural evolution under pressure of powder and single crystals of the layered antiferromagnet FePS3
| Autor: | David M. Jarvis, Matthew J. Coak, Hayrullo Hamidov, Charles R. S. Haines, Giulio I. Lampronti, Cheng Liu, Shiyu Deng, Dominik Daisenberger, David R. Allan, Mark R. Warren, Andrew R. Wildes, Siddharth S. Saxena |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Physical Review B. 107 |
| ISSN: | 2469-9969 2469-9950 |
| DOI: | 10.1103/physrevb.107.054106 |
| Popis: | The layered antiferromagnet FePS$_3$ has been shown to undergo a structural transition under pressure linked to an insulator-metal transition, with two incompatible models previously proposed for the highest-pressure structure. We present a study of the high-pressure crystal structures of FePS$_3$ using both single-crystal and powder x-ray diffraction. We show that the highest pressure transition involves a collapse of the inter-planar spacing of this material, along with an increase in symmetry from a monoclinic to a trigonal structure, to the exclusion of other models. The extent of this volume collapse is shown to be sensitive to the presence of a helium pressure medium in the sample environment, indicating that consideration of such experimental factors is important for understanding high-pressure behaviours in this material. Comment: 5 pages, 3 figures |
| Databáze: | OpenAIRE |
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