期刊
PHYSICAL REVIEW B
卷 106, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.106.224307
关键词
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资金
- French National Agency for Research project SECRETS [ANR PRC 20-CE06-0023-01]
Based on symmetry arguments, this study predicts the existence of strong magnetochiral anisotropy in chiral dielectrics, and experimental observation of this phenomenon in chiral ferroelectrics has been reported. A microscopic model is presented to describe both direct and inverse dielectric magnetochiral anisotropy in chiral ferroelectric triglycine sulfate (TGS).
Recently, we have predicted, solely on the basis of symmetry arguments, the existence of strong magnetochiral anisotropy in the displacement current in chiral dielectrics and reported its experimental observation in chiral ferroelectrics near their ferroelectric-paraelectric phase transitions [Nat. Commun. 13, 3564 (2022).]. Here, we present a microscopic model that describes both direct and inverse dielectric magnetochiral anisotropy (dMChA) in the chiral ferroelectric triglycine sulfate (TGS), based on the specifics of the charge movement in a time -varying electric field. We predict a strong inverse dMChA in TGS that should be within reach of experimental observation and we find good agreement between our model and the experimental observation of the direct dMChA in TGS.
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