Indications of ferroelectric behaviour near room temperature in the organic–inorganic hybrid Q <sub>2</sub> CuBr <sub>4</sub>

A quinuclidinium-based copper bromide molecular ferroelectric, exhibiting a polarization of <i>P</i><sub>s</sub> = 0.52 μC cm<sup>-2</sup> at zero electric field, has been successfully synthesized. This compound undergoes an order-disorder phase transition at <i>T</i><sub>c</sub> = 295 K, associated with thermally induced rotational motion of the quinuclidinium cations. This transition results in pronounced changes in both the dielectric constant and thermal properties. The contributions of the organic and inorganic components, as well as their interactions, to the observed electrical and thermal behaviors are discussed using both experimental data and theoretical analysis.

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Publication Details

Journal
Dalton Transactions
Published
2025-01-01
DOI
https://doi.org/10.1039/d5dt01668a
Primary Topic
Solid-state spectroscopy and crystallography
Type
article
Field-Weighted Citation Impact
0.00

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article

Indications of ferroelectric behaviour near room temperature in the organic–inorganic hybrid Q 2 CuBr 4

Natalia Anna Wójcik, Ewelina Jach, Piotr Staniorowski, Agnieszka Ciżman et al.
Dalton Transactions
Solid-state spectroscopy and crystallography
article

Indications of ferroelectric behaviour near room temperature in the organic–inorganic hybrid Q 2 CuBr 4

Natalia Anna Wójcik, Ewelina Jach, Piotr Staniorowski, Agnieszka Ciżman, Monika Trzebiatowska, L. M. Filevska, Paweł Szarek, Dorota A. Kowalska, W. Medycki, Marek A. Gusowski, Adam Bartosiewicz
article en

Abstract

A quinuclidinium-based copper bromide molecular ferroelectric, exhibiting a polarization of <i>P</i><sub>s</sub> = 0.52 μC cm<sup>-2</sup> at zero electric field, has been successfully synthesized. This compound undergoes an order-disorder phase transition at <i>T</i><sub>c</sub> = 295 K, associated with thermally induced rotational motion of the quinuclidinium cations. This transition results in pronounced changes in both the dielectric constant and thermal properties. The contributions of the organic and inorganic components, as well as their interactions, to the observed electrical and thermal behaviors are discussed using both experimental data and theoretical analysis.

Dalton TransactionsVol. 54(42)
Wrocław University of Science and Technology (PL), Gdańsk University of Technology (PL), University of Wrocław (PL), United States Department of the Navy (US), Institute of Molecular Physics of the Polish Academy of Sciences (PL), AGH University of Krakow (PL), Polish Academy of Sciences (PL)
Politechnika Wrocławska
Openalex Percentile: Top 79%
Solid-state spectroscopy and crystallography
DOIOpen Access PDFOpenAlex
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