Effects of monoclinic symmetry on the properties of biaxial liquid crystals.
Effects of monoclinic symmetry on the properties of biaxial liquid crystals.
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单斜对称性对双轴液晶性能的影响。
DOI:
10.1103/physreve.97.042702
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Solodkov NV
中科院分区:
文献类型:
--
作者:
Solodkov NV
Tilted smectic liquid crystal phases such as the smectic-C phase seen in calamitic liquid crystals are usually treated using the assumption of biaxial orthorhombic symmetry. However, the smectic-C phase has monoclinic symmetry, thereby allowing disassociation of the principal optic and dielectric axes based on symmetry and invariance principles. This is demonstrated here by comparing optical and dielectric measurements for two materials with highly first-order direct transitions from nematic to smectic-C phases. The results show a high difference between the orientations of the principal axes sets, which is interpreted as the existence of two distinct cone angles for optical and dielectric frequencies. Both materials exhibit an increasing degree of monoclinic behavior with decreasing temperature. Due to fast switching speeds, ferroelectric smectic-C* materials are important for fast modulators and LCoS devices, where the dielectric biaxiality influences device operation.
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影响因子:
2.2
作者:
Jones J
通讯作者:
Jones J
DOI:
10.1103/physreva.46.951
发表时间:
1992
期刊:
Physical review. A, Atomic, molecular, and optical physics
影响因子:
--
作者:
F. Gouda;W. Kuczyński;S. Lagerwall;M. Matuszczyk;T. Matuszczyk;K. Skarp
通讯作者:
K. Skarp
DOI:
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发表时间:
2006
期刊:
Phys. Rev. Lett 97
影响因子:
--
作者:
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通讯作者:
K. Gomola and H. Takezoe
DOI:
--
发表时间:
1973
期刊:
影响因子:
--
作者:
W. L. Mcmillan
通讯作者:
W. L. Mcmillan
影响因子:
6.4
作者:
Zhaopeng Zhang;S. Kaur;B. Kundu;B. K. Sadashiva;H. Gleeson
通讯作者:
H. Gleeson