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作 者:Yang Shen Bing Yu WenYi Tong QingBiao Zhao ChunGang Duan
机构地区:[1]Key Laboratory of Polar Materials and Devices,Ministry of Education,Department of Electronic Science,East China Normal University,Shanghai 200062,China [2]Theoretical Materials Physics,Universitéde Liège,Liège B-4000,Belgium [3]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China
出 处:《Science China(Physics,Mechanics & Astronomy)》2020年第10期47-61,共15页中国科学:物理学、力学、天文学(英文版)
基 金:supported by the National Key Research and Development Program of China(Grant No.2017YFA0303403);the National Natural Science Foundation of China(Grant Nos.11404358,51572085,and11774092);the Shanghai Science and Technology Innovation Action Plan(Grant No.19JC1416700);the ECNU Multifunctional Platform for Innovation。
摘 要:Nonreciprocal directional dichroism in multiferroics,namely magnetoelectric coupling in the dynamic regime,is endowed with rich physics and promising applications,which are entangled with fundamental physical components,such as spin,orbital,lattice,charge,and topology.Such a linear nonreciprocal response behavior in the GHz-THz frequency range,represented by optical magnetoelectric effect and magnetochiral dichroism,occurs ubiquitously in material systems with the spontaneous breaking of space-time symmetry,and is subject to Onsager’s reciprocal theorem in the thermodynamic limit.Microscopically,these nonreciprocal responses are usually encoded by toroidization(chirality)and electromagnon(quasiparticle),thus establishing a comprehensive understanding of magnetoelectric coupling and irreversible dynamics.Herein,the basic mechanisms and emergent nonreciprocal directional dichroism in single-phase multiferroics are summarized.We expect that the present review will stimulate diverse possibilities toward nonreciprocal directional dichroism within and beyond multiferroics.
关 键 词:nonreciprocal directional dichroism multiferroic materials optical magnetoelectric effect magnetochiral dichroism electromagnon
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