Propagation of periodic director and flow patterns in a cholesteric liquid crystal under electroconvection

Propagation of periodic director and flow patterns in a cholesteric liquid crystal under electroconvection | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Propagation of periodic director and flow patterns in a cholesteric liquid crystal under electroconvection Jun Yoshioka, Hiroki Nobori, Koji Fukao, Fumito Araoka This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4481628/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 05 Oct, 2024 Read the published version in Scientific Reports → Version 1 posted 10 You are reading this latest preprint version Abstract The electroconvection of liquid crystals is a typical example of a dissipative structure generated by complicated interactions between three factors: convective flow, structural deformation, and the migration of charge carriers. In this study, we found that the periodic structural deformation of a cholesteric liquid crystal propagates in space, like a wave, under an alternating-current electric field. The existence of convection and charge carriers was confirmed by flow-field measurements and dielectric relaxation spectroscopy. Given that the wave phenomenon results from electroconvection, we suggest a possible model for describing the mechanism of wave generation. The validity of the model was examined using the Onsager variational principle. Consequently, it was suggested that wave generation can be described by four effects: the electrostatic potential, mixing entropy, anisotropic friction due to charge migration, and viscous dissipation of the liquid crystal. Physical sciences/Materials science/Soft materials/Liquid crystals Physical sciences/Physics/Fluid dynamics Full Text Additional Declarations No competing interests reported. Supplementary Files SupplementaryNote.docx SupplementaryVideo1.mp4 SupplementaryVideo2.mp4 SupplementaryVideo3.mp4 Cite Share Download PDF Status: Published Journal Publication published 05 Oct, 2024 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 12 Jul, 2024 Reviews received at journal 08 Jul, 2024 Reviewers agreed at journal 01 Jul, 2024 Reviews received at journal 17 Jun, 2024 Reviewers agreed at journal 30 May, 2024 Reviewers invited by journal 28 May, 2024 Editor assigned by journal 28 May, 2024 Editor invited by journal 28 May, 2024 Submission checks completed at journal 28 May, 2024 First submitted to journal 26 May, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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