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Angular structure factor of the hexatic-B liquid crystals: bridging theory and experiment

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dc.contributor.authorZaluzhnyy, I. A.
dc.contributor.authorKurta, R.
dc.contributor.authorSprung, M.
dc.contributor.authorVartanyants, I. A.
dc.date.accessioned2024-12-26T07:18:06Z
dc.date.available2024-12-26T07:18:06Z
dc.date.issued2022
dc.description.abstractWe report results of X-ray scattering studies of the angular structure factor of liquid crystal hexatic-B films. According to the sixfold rotational symmetry of the hexatic-B phase, its characteristic scattering splits into six reflections. The shape of the radial and angular cross-sections of these reflections and their temperature evolution are analyzed. We find that over a wide temperature range of the hexatic-B phase existence the angular profiles of the in-plane X-ray scattering are well fitted by the Voigt function, which is a convolution of the Gaussian and Lorentzian functions. This result is supported by the known theoretical considerations of the hexatic structure factor below the smectic-hexatic phase transition temperature. Similar predictions for the angular shape of the hexatic peak in the vicinity of the smectic-hexatic phase transition temperature follow from the multicritical scaling theory of the hexatic-B phase in three dimensions. We find that the specific shape of the hexatic structure factor can be explained by the interplay of two distinct contributions to the free energy of the system, a liquid-like density term and a coupling term between the bond-orientational order and short-range density fluctuations.
dc.identifier.citationAngular structure factor of the hexatic-B liquid crystals: bridging theory and experiment / Zaluzhnyy, IA [et al.] // Soft Matter. - 2022. - 10.1039/d1sm01446c
dc.identifier.doi10.1039/d1sm01446c
dc.identifier.urihttps://www.doi.org/10.1039/d1sm01446c
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85123714353&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000732848500001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/28618
dc.relation.ispartofSoft Matter
dc.titleAngular structure factor of the hexatic-B liquid crystals: bridging theory and experiment
dc.typeArticle
dspace.entity.typePublication
relation.isOrgUnitOfPublicationdcdb137c-0528-46a5-841b-780227a67cce
relation.isOrgUnitOfPublication.latestForDiscoverydcdb137c-0528-46a5-841b-780227a67cce
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