极化(电化学)
物理
凝聚态物理
偶极子
圆极化
偏振旋转器
液晶
电场
光学
量子力学
磁场
化学
双折射
物理化学
作者
Junchen Zhou,Yu Zou,Jinxing Li,Mingjun Huang,Satoshi Aya
出处
期刊:PNAS nexus
[Oxford University Press]
日期:2023-08-01
卷期号:2 (8)
被引量:6
标识
DOI:10.1093/pnasnexus/pgad265
摘要
Abstract By analogy with spin waves in ferromagnetic systems, the polarization (or dipole) wave is the electric counterpart that remains elusive. Here, we discover that the helielectricity, i.e. a polarization field with helicoidal helices that corresponds to a quasi-layered chiral nematic environment, causes a spontaneous formation of large-scale polarization waves in the form of the sinusoidal function. Both experimental and theoretical analyses reveal that the polarization ordering over a threshold polarization strength violates the inherent periodicity of the polarization helices, thus penalizing the compression energy. It drives a second-order structural transition to a periodically modulated polarization wave state. The roles of chirality and confinement condition are discussed.
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