Počet záznamů: 1

Experimental proof of symmetry breaking in tilted smectics composed of molecules with axial chirality

  1. 1.
    0353239 - FZU-D 2011 RIV US eng J - Článek v odborném periodiku
    Glogarová, Milada - Hampl, F. - Lejček, Lubor - Novotná, Vladimíra - Svoboda, J. - Cigl, M.
    Experimental proof of symmetry breaking in tilted smectics composed of molecules with axial chirality.
    Journal of Chemical Physics. Roč. 133, č. 22 (2010), 221102/1-221102/4 ISSN 0021-9606
    Grant CEP: GA AV ČR IAA100100911; GA AV ČR(CZ) GA202/09/0047; GA MŠk(CZ) OC10006
    Výzkumný záměr: CEZ:AV0Z10100520
    Klíčová slova: liquid crystals * atropoisomeric * axial chirality
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 2.920, rok: 2010

    For the first time, domains with twisted structures have been established in planar samples of achiral compounds in tilted smectic C phase. This evidences separation of molecular conformers differring in axial chirality and confirms polar C2 symmetry of these domains. A simple model considering polar surface anchoring energy and bulk energy of the twist can account for this finding. Conditions for coexistence of twisted and homogeneous domains are discussed.
    Trvalý link: http://hdl.handle.net/11104/0192537