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  • Criticality controlling mechanisms in nematic liquid crystals [Elektronski vir]
    Zid, Maha ...
    We theoretically study the generic mechanisms that could establish critical behavior in nematic liquid crystals (NLCs). The corresponding free energy density terms should exhibit linear coupling with ... the nematic order parameter and, via this coupling, enhance the nematic order. We consider both temperature- and pressure-driven, order–disorder phase transitions. We derive a scaled effective free energy expression that describes how qualitatively different mechanisms enforce critical behavior. Our main focus is on the impact of nanoparticles (NPs) in homogeneous NP-NLC mixtures. We illustrate that in the case of pressure-driven phase changes, lower concentrations are needed to impose critical point conditions in comparison with pure temperature variations.
    Source: Nanomaterials [Elektronski vir]. - ISSN 2079-4991 (Vol. 14, iss. 3, [article no.] 320, Feb. 2024, str. 1-13)
    Type of material - e-article ; adult, serious
    Publish date - 2024
    Language - english
    COBISS.SI-ID - 183876867

    Link(s):

    https://www.mdpi.com/2079-4991/14/3/320
    DOI

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