VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Qualitatively and quantitatively different configurations of nematic–nanoparticle mixtures
    Zid, Maha ...
    We consider the influence of different nanoparticles or micrometre-scale colloidal objects, which we commonly refer to as particles, on liquid crystalline (LC) orientational order in essentially ... spatially homogeneous particle–LC mixtures. We first illustrate the effects of coupling a single particle with the surrounding nematic molecular field. A particle could either act as a “dilution”, i.e., weakly distorting local effective orientational field, or as a source of strong distortions. In the strong anchoring limit, particles could effectively act as topological point defects, whose topological charge q depends on particle topology. The most common particles exhibit spherical topology and consequently act as q = 1 monopoles. Depending on the particle’s geometry, these effective monopoles could locally induce either point-like or line-like defects in the surrounding LC host so that the total topological charge of the system equals zero. The resulting system’s configuration is topologically equivalent to a crystal-like array of monopole defects with alternating topological charges. Such configurations could be trapped in metastable or stable configurations, where the history of the sample determines a configuration selection
    Vir: Nanomaterials [Elektronski vir]. - ISSN 2079-4991 (Vol. 14, issue 5, 2024, str. 1-16)
    Vrsta gradiva - e-članek
    Leto - 2024
    Jezik - angleški
    COBISS.SI-ID - 187069955
    DOI

Vnos na polico