Chau Dao (Author), Jeffrey Christopher Everts (Author), Miha Ravnik (Author), Yaroslav Tserkovnyak (Author)

Abstract

Adopting a spintronics-inspired approach, we study the reciprocal coupling between ionic charge currents and nematic texture dynamics in a uniaxial nematic electrolyte. Assuming quenched fluid dynamics, we develop equations of motion analogously to spin torque and spin pumping. Based on the principle of least dissipation of energy, we derive the adiabatic “nematic torque” exerted by ionic currents on the nematic director field as well as the reciprocal motive force on ions due to the orientational dynamics of the director. We discuss several simple examples that illustrate the potential functionality of this coupling. Furthermore, using our phenomenological framework, we propose a practical means to extract the coupling strength through impedance measurements on a nematic cell. Exploring further applications based on this physics could foster the development of nematronics—nematic iontronics.

Keywords

fizika kondenzirane snovi;nematski tekoči kristali;ionske tekočine;condensed matter physics;nematic liquid crystals;ionic fluids;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FMF - Faculty of Mathematics and Physics
UDC: 538.9
COBISS: 150353923 Link will open in a new window
ISSN: 0031-9007
Views: 29
Downloads: 6
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Other data

Secondary language: Slovenian
Secondary keywords: fizika kondenzirane snovi;nematski tekoči kristali;ionske tekočine;
Type (COBISS): Article
Pages: str. 168102-1-168102-7
Volume: ǂVol. ǂ130
Issue: ǂiss. ǂ16
Chronology: 2023
DOI: 10.1103/PhysRevLett.130.168102
ID: 23349900