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Bromocholine bromide is a molecular ferroelectric with moderate phase transition temperature

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Abstract

We showed that the simple organic salt bromocholine bromide is a molecular ferroelectric with a moderate ferroelectric phase transition temperature (329 K). The order–disorder dynamic transition of organic cations results in symmetry breaking from the centrosymmetric paraelectric phase (P21/m) to polar ferroelectric phase (P21), affording a moderate spontaneous polarization of 1.0 μC cm−2 for the ferroelectric phase, as well as a switchable SHG signal and pyroelectric property with feasible “on/off” contrasts.

Graphical abstract: Bromocholine bromide is a molecular ferroelectric with moderate phase transition temperature

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Publication details

The article was received on 26 Jan 2018, accepted on 06 Feb 2018 and first published on 07 Feb 2018


Article type: Communication
DOI: 10.1039/C8TC00419F
Citation: J. Mater. Chem. C, 2018, Advance Article
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    Bromocholine bromide is a molecular ferroelectric with moderate phase transition temperature

    S. Wang, X. Chen, B. Huang, Y. Su, W. Zhang, M. Zeng and X. Chen, J. Mater. Chem. C, 2018, Advance Article , DOI: 10.1039/C8TC00419F

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