Novel Ferroelectric Liquid Crystals with Very Large Spontaneous Polarization

Abstract

A 6-dimensional grand unified theory with the compact space having the topology of a real projective plane, i.e., a 2-sphere with opposite points identified, is considered. The space is locally flat except for two conical singularities where the curvature is concentrated. One supersymmetry is preserved in the effective 4d theory. The unified gauge symmetry, for example SU(5) , is broken only by the non-trivial global topology. In contrast to the Hosotani mechanism, no adjoint Wilson-line modulus associated with this breaking appears. Since, locally, SU(5) remains a good symmetry everywhere, no UV-sensitive threshold corrections arise and SU(5)-violating local operators are forbidden. Doublettriplet splitting can be addressed in the context of a 6d N = 2 super Yang-Mills theory with gauge group SU(6). If this symmetry is first broken to SU(5) at a fixed point and then further reduced to the standard model group in the above non-local way, the two light Higgs doublets of the MSSM are predicted by the group-theoretical and geometrical structure of the model.

Stereochemical studies of optically active 2-hydroxy-5-alkyl-δ-valerolactone derivatives as chiral dopant for ferroelectric liquid crystals

“…The measurements of the phase sequence, transition temperatures, the magnitude and the sign of P, and tilt angles were carried out in accordance with the procedures reported previously [2]. The specimen was placed between two indium-tin oxide (ITO) glass plates to form a cell.…”

Novel Ferroelectric Liquid Crystalline δ-Valerolactone Derivatives with Very Large Spontaneous Polarization

“…Detailed synthetic procedure was reported in the previous paper. 2 The FLC mixtures were prepared by adding 2% by weight of the chiral compound into a nonchiral smectic C mixture which was a mixture of several kinds of 2-(4-alkoxyphenyl)-5-alkylpyrimidine and had the phase transition temperatures as follows3; …”

Synthesis and physical properties of difluoroterphenyl ferroelectric liquid crystal with mixed alkenyloxy‐ester terminal ends

“…The work presented in this paper consists of the design, synthesis and characterization of the ferroelectric liquid crystal S(+)-(2-octyl)-40-decenyloxy-3,39-difluoroterphenyl-4-carboxylate (see structure in figure 1; designated as compound 11), with improved electro-optical properties suitable for display applications [5,6]. Electro-optic results will be presented elsewhere.…”