The time evolution of director orientation in the cell subject to the external magnetic field in the case of time-dependent boundary conditions is investigated. The case when one substrate has strong anchoring and at other substrate director anchoring is determined by process of adsorption/desorption of LC molecules on it is considered. The problem is solved in one constant approximation and Rapini-type potential for interaction between LC molecules in the cell and adsorbed LC molecules is proposed. During the time evolution the orientational distribution function of molecules adsorbed on the cell substrate possesses two maximums. Time evolution of the director orientation, anchoring energy and easy axis at the substrate is investigated numerically.
Magnetic field induced director reorientation in the nematic cell with time-dependent anchoring due to adsorption/desorption of LC molecules RID B-6722-2008
FAETTI, SANDRO
2005-01-01
Abstract
The time evolution of director orientation in the cell subject to the external magnetic field in the case of time-dependent boundary conditions is investigated. The case when one substrate has strong anchoring and at other substrate director anchoring is determined by process of adsorption/desorption of LC molecules on it is considered. The problem is solved in one constant approximation and Rapini-type potential for interaction between LC molecules in the cell and adsorbed LC molecules is proposed. During the time evolution the orientational distribution function of molecules adsorbed on the cell substrate possesses two maximums. Time evolution of the director orientation, anchoring energy and easy axis at the substrate is investigated numerically.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
