Article (Scientific journals)
Handedness Selection and Hysteresis of Chiral Orders in Crystals.
Fava, Mauro; Romero, Aldo; Bousquet, Eric
2025 • In Physical Review Letters, 135 (14), p. 146102
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Keywords :
Axial moments; Chiral phasis; Circularly-polarized; Critical temperatures; Electromagnetics; Hysteresis process; Lefthanded; Polar moment; Property; Transition state; Physics and Astronomy (all)
Abstract :
[en] A phase transition can drive the spontaneous emergence of chiral orders in crystals below a critical temperature. However, selecting either a right- or a left-handed phase with the aid of electromagnetic fields is challenging, particularly when intrinsic polar and axial moments are lacking. In this Letter, we show that purely chiral phases with opposite handedness, when both deriving from one degenerate instability, are linked by accessible transition states. While these states compete with the chirality under an electromagnetic field, a circularly polarized source can select the handedness of the system. This selection is mediated by a chiral monopole and may further result in a hysteresis process of the gyrotropic properties, namely, the optical activity, below the critical temperature. We suggest several materials, among which K_{3}NiO_{2}, as candidates for possible experimental observation.
Research Center/Unit :
Q-MAT - Quantum Materials - ULiège
Disciplines :
Physics
Author, co-author :
Fava, Mauro  ;  Université de Liège - ULiège > Département de physique > Physique théorique des matériaux
Romero, Aldo  ;  Université de Liège - ULiège > Département de physique > Physique des matériaux et nanostructures ; West Virginia University, Department of Physics and Astronomy, Morgantown, West Virginia 26505-6315, USA
Bousquet, Eric  ;  Université de Liège - ULiège > Département de physique > Physique théorique des matériaux
Language :
English
Title :
Handedness Selection and Hysteresis of Chiral Orders in Crystals.
Publication date :
03 October 2025
Journal title :
Physical Review Letters
ISSN :
0031-9007
eISSN :
1079-7114
Publisher :
American Physical Society, United States
Volume :
135
Issue :
14
Pages :
146102
Peer reviewed :
Peer Reviewed verified by ORBi
Tags :
CÉCI : Consortium des Équipements de Calcul Intensif
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
DOE - United States. Department of Energy
SDSC - San Diego Supercomputer Center
NSF - National Science Foundation
Funding text :
The authors acknowledge E. McCabe for fruitful discussions. Computational resources have been provided by the Consortium des Aquipements de Calcul Intensif funded by the Fonds de la Recherche Scientifique (F.R.S.-FNRS) under Grant No. 5020.11. M.F. and E.B. acknowledge FNRS for support and the PDR project CHRYSALID No. 40003544. Work at West Virginia University was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under Award No. DE-SC0021375. This work used Bridges2 and Expanse at the Pittsburgh Supercomputer (Bridges2) and the San Diego Supercomputer Center (Expanse) through Allocation No. DMR140031 from the Advanced Cyberinfrastructure Coordination Ecosystem: Services & Support program, which the National Science Foundation supports via Grants No. 2138259, No. 2138286, No. 2138307, No. 2137603, and No. 2138296.The authors acknowledge E. McCabe for fruitful discussions. Computational resources have been provided by the Consortium des \u00C9quipements de Calcul Intensif funded by the Fonds de la Recherche Scientifique (F.R.S.-FNRS) under Grant No. 2.5020.11. M.\u2009F. and E.\u2009B. acknowledge FNRS for support and the PDR project CHRYSALID No. 40003544. Work at West Virginia University was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under Award No. DE-SC0021375. This work used Bridges2 and Expanse at the Pittsburgh Supercomputer (Bridges2) and the San Diego Supercomputer Center (Expanse) through Allocation No. DMR140031 from the Advanced Cyberinfrastructure Coordination Ecosystem: Services & Support program, which the National Science Foundation supports via Grants No. 2138259, No. 2138286, No. 2138307, No. 2137603, and No. 2138296.
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