Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/9404
Title: Dynamics of Fréedericksz transition in a fluctuating magnetic field
Author: Sagués i Mestre, Francesc
San Miguel Ruibal, Maximino
Keywords: Cristalls líquids
Fluctuacions (Física)
Dinàmica de fluids
Liquid crystals
Fluctuation phenomena
Issue Date: 1985
Publisher: The American Physical Society
Abstract: Fréedericksz transition under twist deformation in a nematic layer is discussed when the magnetic field has a random component. A dynamical model which includes the thermal fluctuations of the system is presented. The randomness of the field produces a shift of the instability point. Beyond this instability point the time constant characteristic of the approach to the stationary stable state decreases because of the field fluctuations. The opposite happens for fields smaller than the critical one. The decay time of an unstable state, calculated as a mean first-passage time, is also decreased by the field fluctuations.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.32.1843
It is part of: Physical Review A, 1985, vol. 32, núm. 3, p. 1843-1851.
URI: http://hdl.handle.net/2445/9404
ISSN: 1050-2947
Appears in Collections:Articles publicats en revistes (Ciència dels Materials i Química Física)

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