Issue 15, 2024

Crystal growth and spontaneous polarization mechanism of polar metal borate halides: Mn3B7O13Cl

Abstract

Spontaneous polarization plays a crucial role in manifesting unprecedented properties in polar materials, yet its mechanism remains relatively unexplored. We lack certainty regarding how asymmetric groups distort to generate spontaneous polarization, and the understanding of how spontaneous polarization changes with temperature is incomplete. In this study, we have grown a high-quality crystal of metal borate halides, specifically Mn3B7O13Cl, as a proof of principle for spontaneous polarization in polar materials. Our results for Mn3B7O13Cl indicate that approximately 80% of spontaneous polarization originates from [MnCl2O4], and the magnitude of spontaneous polarization associated with [MnCl2O4] remains nearly constant with temperature. Meanwhile, the temperature-dependent variation in spontaneous polarization is entirely governed by the [BO4–BO3] groups. These findings provide insight into the mechanism of spontaneous polarization in polar materials, particularly metal borate halides, and offer a new pathway for inducing properties related to spontaneous polarization in this class of materials.

Graphical abstract: Crystal growth and spontaneous polarization mechanism of polar metal borate halides: Mn3B7O13Cl

Supplementary files

Article information

Article type
Communication
Submitted
21 Jan 2024
Accepted
23 Mar 2024
First published
25 Mar 2024

CrystEngComm, 2024,26, 2060-2064

Crystal growth and spontaneous polarization mechanism of polar metal borate halides: Mn3B7O13Cl

H. Li, D. Zhang, J. Guo, Q. Wang, Y. Ma, M. Hao, Y. Wu, F. Meng, T. Liu, Y. Xu, X. Chen, C. Zhao, D. Meng, Z. Zheng and R. Sun, CrystEngComm, 2024, 26, 2060 DOI: 10.1039/D4CE00060A

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