Spontaneous Twist of Ferroelectric Smectic Blocks in Polar Fluids

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

In soft matter, the polar orientational order of molecules can facilitate coexistence structural chirality and ferroelectricity. The ferroelectric nematic (NF) state, exhibited by achiral calamitic with large dipole moments, serves as an ideal model for emergence spontaneous chirality. This chiral ground state arises from a left- or right-handed twist polarization due to depolarization effects. contrast, smectic characterized lamellar structure lower symmetry, experiences significantly higher energy associated layer-twisting deformations formation domain walls, thus avoiding continuously twisted layered structure. this study, two types (BOE-NO2 DIOLT) are reported that possess different molecular structures but exhibit NF-ferroelectric phase sequence. It is demonstrated NF inherited in phases BOE-NO2, which features larger moments steric hindrance moiety, thereby triggering blocks.

Language: Английский

Optical, dielectric and electroconvection studies of a five-ring ester-difluoromethoxy linked ferroelectric nematic liquid crystal with a lateral methoxy group

Soft Matter, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Experimental studies on a five-ring ester-difluoromethoxy linked ferroelectric nematic liquid crystal.

Language: Английский

The Influence of Methyl Groups on the Formation of the Ferroelectric Nematic Phase

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: May 27, 2025

Language: Английский