A new approach to the textural interpretation of magnetically aligned nematic and cholesteric lyotropic mesophases by using plate-? Accessory

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dc.contributor.authorLuders, D. D.
dc.contributor.authorAkpınar, Erol
dc.contributor.authorPereira, M. L. G.
dc.contributor.authorAstrath, N. G. C.
dc.date.accessioned2024-09-25T19:59:45Z
dc.date.available2024-09-25T19:59:45Z
dc.date.issued2024
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Kimya Bölümü en_US
dc.description.abstractLyotropic liquid crystals are substances formed by anisotropic micelles. Their unit structure change with the concentration and temperature and, as a consequence, the optical anisotropy changes. A measurable optical parameter, which reflects these anisotropies, is the refractive indices. Using these indices, it is possible to represent the anisotropic medium by indicatrix figures. In this sense, the indicatrix orientations will be interpreted in this work along the discotic nematic $\lpar {{\rm N}_{\rm D}} \rpar$(ND) - biaxial nematic $\lpar {{\rm N}_{\rm B}} \rpar$(NB) - calamitic nematic $\lpar {{\rm N}_{\rm C}} \rpar$(NC) phases using a plate-$\lambda$lambda accessory, from the polarized light microscopy, to modify the interference colors along the Michel-Levy chart of the textures exhibited by the sample. Furthermore, the discotic cholesteric $\lpar {{\rm C}{\rm h}_{\rm D}} \rpar$(ChD) - biaxial cholesteric $\lpar {{\rm C}{\rm h}_{\rm B}} \rpar$(ChB) - ${\rm N}_{\rm C}<^>{\rm \ast } {\rm \; }\lsqb$NC*[unwounded calamitic cholesteric $\lpar {{\rm C}{\rm h}_{\rm C}} \rpar$(ChC)$\rsqb \;$] phases are also investigated by the same methodology. The optic sign is also discussed here. In addition, we will also present a procedure that may help us to recognize the ${\rm N}_{\rm B}-{\rm N}_{\rm C}$NB-NC phase transition from the microscopic textures.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey [120Z209]en_US
dc.description.sponsorshipThis work was supported by The Scientific and Technological Research Council of Turkey: [Grant Number 120Z209].en_US
dc.identifier.doi10.1080/01411594.2023.2301469
dc.identifier.endpage191en_US
dc.identifier.issn0141-1594
dc.identifier.issn1029-0338
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85182451996en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage171en_US
dc.identifier.urihttps://doi.org/10.1080/01411594.2023.2301469
dc.identifier.urihttps://hdl.handle.net/20.500.12491/13878
dc.identifier.volume97en_US
dc.identifier.wosWOS:001144466000001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTaylor & Francis Ltden_US
dc.relation.ispartofPhase Transitionsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmzYK_20240925en_US
dc.subjectOptic Signen_US
dc.subjectBiaxial Nematic Phaseen_US
dc.subjectBiaxial Cholesteric Phaseen_US
dc.subjectIndicatrix Orientationen_US
dc.subjectInterference Coloren_US
dc.subjectOptical Parameter
dc.titleA new approach to the textural interpretation of magnetically aligned nematic and cholesteric lyotropic mesophases by using plate-? Accessoryen_US
dc.typeArticleen_US

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