Domain structures and photoinduced dynamics of electronic ferroelectrics investigated by terahertz-emission microscopy

Domain structures and photoinduced dynamics of electronic ferroelectrics investigated by terahertz-emission microscopy

Electronic ferroelectricity, which is peculiarly driven by charge ordering (CO) or strong Coulomb repulsion among charges,[1] has become an important topic in contemporary condensed matter physics, toward gigantic optical responses such as ultrafast photoinduced insulator-to-metal transition or larg...

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Bibliographic Details
Main Authors: Itoh, Hirotake, Yamamoto, Kaoru, Dressel, Martin, Iwai, Shinichiro
Other Authors: Asian Spectroscopy Conference 2020
Format: Conference or Workshop Item
Language:English
Published: 2020
Subjects:
Science::Chemistry
Electronic Ferroelectricity
Terahertz
Online Access:https://hdl.handle.net/10356/144231
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Institution: Nanyang Technological University
Language: English
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Summary:Electronic ferroelectricity, which is peculiarly driven by charge ordering (CO) or strong Coulomb repulsion among charges,[1] has become an important topic in contemporary condensed matter physics, toward gigantic optical responses such as ultrafast photoinduced insulator-to-metal transition or large optical nonlinearity.[2,3] We report herein recent results of terahertz(THz)-wave-emission microscopy to reveal domain structures of prototypical electronic ferroelectrics: strongly-correlated quasi-one-dimensional organic conductors (TMTTF)2X (TMTTF: tetramethyl-tetrathiafulvalene, X = SbF6, AsF6, PF6, ReO4, BF4).[4,5]

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