Superstructural chirality of a periodic system of domains of opposite chirality and π-walls in B.sub.2./sub. phase composed of bent-shaped molecules

0352395 - FZÚ 2011 RIV GB eng J - Journal Article
Lejček, Lubor
Superstructural chirality of a periodic system of domains of opposite chirality and π-walls in B₂ phase composed of bent-shaped molecules.
Phase Transitions. Roč. 83, 10-11 (2010), s. 1001-1013. ISSN 0141-1594. E-ISSN 1029-0338
R&D Projects: GA AV ČR IAA100100911; GA AV ČR(CZ) GA202/09/0047; GA MŠMT(CZ) OC10006
Institutional research plan: CEZ:AV0Z10100520
Keywords : B₂ phase * bent-shaped molecules * domains of opposite chirality * π-walls * superstructural chirality
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.006, year: 2010

Domains of opposite chirality can exist either in synclinic ferroelectric or in anticlinic antiferroelectric structures in B2 phase of bent-shaped molecules. These domains are separated by π-walls with either right-hended or left-handed rotations of molecular polarizations. In this study, periodic systems of domains of opposite chirality connected by π-walls are discussed. A simple estimation of this periodicity is proposed. Systems of domains and walls create global structures which could have also opposite chirality - so-called superstructural chirality of the system.
Permanent Link: http://hdl.handle.net/11104/0191908