Nematics with quenched disorder: pinning out the origin of memory.

Rotunno, M; Buscaglia, M; Chiccoli, C; Mantegazza, F; Pasini, P; Bellini, T; Zannoni, C

Rotunno, M; Buscaglia, M; Chiccoli, C; Mantegazza, F; Pasini, P; Bellini, T; Zannoni, C.

Afiliación

Rotunno M; Dipartimento di Chimica, Biochimica e Biotecnologie per la Medicina and INFM, Università di Milano, Italy.

Phys Rev Lett ; 94(9): 097802, 2005 Mar 11.

Article en En | MEDLINE | ID: mdl-15784001

RESUMEN

Memory effects and glassy behavior have been repeatedly observed in disordered nematic liquid crystals but the connection between these effects and the system topology remained unrevealed. We present an analysis of the local and global topology of the nematic ordering in the presence of quenched disorder and we show that nematics with quenched disorder can be mapped into a system of pinned defect lines and that the memory of the system stems from the pinning of these strings.

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Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2005 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Estados Unidos

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