Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/9428
Title: Fréedericksz transition in a periodic magnetic field
Author: Torrent, M. C. (Maria Carme)
Sagués i Mestre, Francesc
Arias, F.
San Miguel Ruibal, Maximino
Keywords: Cristalls líquids
Transformacions de fase
Liquid crystals
Phase transformations (Statistical physics)
Issue Date: 1988
Publisher: The American Physical Society
Abstract: We study the Fréedericksz transition in a twist geometry under the effect of a periodic modulation of the magnitude of the applied magnetic field. We find a shift of the effective instability point and a time-periodic state with anomalously large orientational fluctuations. This time-periodic state occurs below threshold and it is accompanied by a dynamically stabilized spatial pattern. Beyond the instability the emergence of a transient pattern can be significantly delayed by a fast modulation, allowing the observation of pattern selection by slowing down the reorientational dynamics.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.38.2641
It is part of: Physical Review A, 1988, vol. 38, núm. 5, p. 2641-2649.
URI: http://hdl.handle.net/2445/9428
ISSN: 1050-2947
Appears in Collections:Articles publicats en revistes (Ciència dels Materials i Química Física)

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