{"title":"IR absorption spectra of nematic liquid crystals oriented by an external a.c. electric field","authors":"N. Kirov, P. Simova, H. Ratajczak","doi":"10.1016/0378-4487(82)80068-X","DOIUrl":null,"url":null,"abstract":"<div><p>The influence of a.c. electric field (5kHz) on the IR and FIR spectra of the nematic phase of some liquid crystals with strong positive dielectric anisotropy ( ε<sub>a</sub>≈ 10 – 20) and weak negative dielectric anisotropy(ε<sub>a</sub>≈ −0,2 – 0,7) was investigated. The changes in the half-widths and integral intensity are explained by means of the changes in the molecular orientation due to the electric field influence.</p></div>","PeriodicalId":100049,"journal":{"name":"Advances in Molecular Relaxation and Interaction Processes","volume":"23 2","pages":"Pages 125-142"},"PeriodicalIF":0.0000,"publicationDate":"1982-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0378-4487(82)80068-X","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Molecular Relaxation and Interaction Processes","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/037844878280068X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
The influence of a.c. electric field (5kHz) on the IR and FIR spectra of the nematic phase of some liquid crystals with strong positive dielectric anisotropy ( εa≈ 10 – 20) and weak negative dielectric anisotropy(εa≈ −0,2 – 0,7) was investigated. The changes in the half-widths and integral intensity are explained by means of the changes in the molecular orientation due to the electric field influence.
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