تقرير
Ferroelectric transition of a chiral molecular crystal BINOL2DMSO
| العنوان: | Ferroelectric transition of a chiral molecular crystal BINOL2DMSO |
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| المؤلفون: | Nomura, Toshihiro, Yajima, Takeshi, Yang, Zhuo, Kurihara, Ryosuke, Ishii, Yuto, Tokunaga, Masashi, Matsuda, Yasuhiro H., Kohama, Yoshimitsu, Kimura, Kenta, Kimura, Tsuyoshi |
| المصدر: | J. Phys. Soc. Jpn. 91, 064702 (2022) |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | We report dielectric, thermodynamical, acoustic, and optical properties of a chiral molecular crystal, 1,1'-bi-2-naphthol 2-dimethylsulfoxide (BINOL2DMSO). We find two successive phase transitions at Tc1=190 K and Tc2=125 K. The first transition at Tc1 is characterized by an order-disorder transition of the guest molecules DMSO along with ferroelectricity. At the second transition of Tc2, the crystal structure deforms from tetragonal to monoclinic, leading to domain formation. Low-temperature x-ray diffraction suggests that the space group changes from P4_12_12 (P4_32_12) to P4_1 (P4_3) at Tc1, and down to P112_1 at Tc2. Comment: 16 pages, 10 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.7566/JPSJ.91.064702 |
| URL الوصول: | http://arxiv.org/abs/2204.01241 |
| رقم الأكسشن: | edsarx.2204.01241 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.7566/JPSJ.91.064702 |
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