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Exotic magnetic and electronic properties of layered CrI3 single crystals under high pressure

Through advanced experimental techniques on CrI3 single crystals, we derive a pressure-temperature phase diagram. We find that Tc increases to ∼66 K with pressure up to ∼3 GPa followed by a decrease to ∼10 K at 21.2 GPa. The experimental results are reproduced by theoretical calculations based on de...

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Main Authors: Ghosh, Anirudha (Author) , Singh, D. (Author) , Aramaki, T. (Author) , Mu, Qingge (Author) , Borisov, V. (Author) , Kvashnin, Y. (Author) , Haider, G. (Author) , Jonák, Martin (Author) , Chareev, D. (Author) , Medvedev, S. A. (Author) , Klingeler, Rüdiger (Author) , Mito, M. (Author) , Abdul-Hafidh, E. H. (Author) , Vejpravova, J. (Author) , Kalbàč, M. (Author) , Ahuja, R. (Author) , Eriksson, Olle (Author) , Abdel-Hafiez, Mahmoud (Author)
Format: Article (Journal) Editorial
Language:English
Published: 8 February 2022
In: Physical review
Year: 2022, Volume: 105, Issue: 8, Pages: 1-6
ISSN:2469-9969
DOI:10.1103/PhysRevB.105.L081104
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevB.105.L081104
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevB.105.L081104
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Author Notes:Anirudha Ghosh, D. Singh, T. Aramaki, Qingge Mu, V. Borisov, Y. Kvashnin, G. Haider, M. Jonak, D. Chareev, S.A. Medvedev, R. Klingeler, M. Mito, E.H. Abdul-Hafidh, J. Vejpravova, M. Kalbàč, R. Ahuja, Olle Eriksson, and Mahmoud Abdel-Hafiez
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Summary:Through advanced experimental techniques on CrI3 single crystals, we derive a pressure-temperature phase diagram. We find that Tc increases to ∼66 K with pressure up to ∼3 GPa followed by a decrease to ∼10 K at 21.2 GPa. The experimental results are reproduced by theoretical calculations based on density functional theory where electron-electron interactions are treated by a static on-site Hubbard U on Cr 3d orbitals. The origin of the pressure-induced reduction of the ordering temperature is associated with a decrease in the calculated bond angle, from 95∘ at ambient pressure to ∼85∘ at 25 GPa. Above 22 GPa, experiment and theory jointly point to the idea that the ferromagnetically ordered state is destroyed, giving rise first to a complex, unknown magnetic configuration, and at sufficiently high pressures a pure antiferromagnetic configuration. This sequence of transitions in the magnetism is accompanied by a well-detected pressure-induced semiconductor-to-metal phase transition that is revealed by both high-pressure resistivity measurements and ab initio theory.
Item Description:Gesehen am 22.03.2022
Physical Description:Online Resource
ISSN:2469-9969
DOI:10.1103/PhysRevB.105.L081104

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