TY - JOUR
T1 - Ferroelectric Transition of a Chiral Molecular Crystal BINOL12DMSO
AU - Nomura, Toshihiro
AU - Yajima, Takeshi
AU - Yang, Zhuo
AU - Kurihara, Ryosuke
AU - Ishii, Yuto
AU - Tokunaga, Masashi
AU - Matsuda, Yasuhiro H.
AU - Kohama, Yoshimitsu
AU - Kimura, Kenta
AU - Kimura, Tsuyoshi
N1 - Publisher Copyright:
© 2022 The Physical Society of Japan.
PY - 2022/6/15
Y1 - 2022/6/15
N2 - We report dielectric, thermodynamical, acoustic, and optical properties of a chiral molecular crystal, 1,1A-bi-2- naphthol 2-dimethylsulfoxide (BINOL12DMSO). We find two successive phase transitions at Tc1 = 190K 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 P41212 (P43212) to P41 (P43) at Tc1, and down to P1121 at Tc2.
AB - We report dielectric, thermodynamical, acoustic, and optical properties of a chiral molecular crystal, 1,1A-bi-2- naphthol 2-dimethylsulfoxide (BINOL12DMSO). We find two successive phase transitions at Tc1 = 190K 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 P41212 (P43212) to P41 (P43) at Tc1, and down to P1121 at Tc2.
UR - https://www.scopus.com/pages/publications/85130902442
U2 - 10.7566/JPSJ.91.064702
DO - 10.7566/JPSJ.91.064702
M3 - Article
AN - SCOPUS:85130902442
SN - 0031-9015
VL - 91
JO - journal of the physical society of japan
JF - journal of the physical society of japan
IS - 6
M1 - 064702
ER -