dor_id: 41759

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650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

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336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

351.#.#.6: https://rmf.smf.mx/ojs/rmf/index

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351.#.#.a: Artículos

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856.4.0.u: https://rmf.smf.mx/ojs/rmf/article/view/3890/3857

100.1.#.a: Ramírez Sanchez, R.; Ruiz Estrada, H.; Alarcón Waess.

524.#.#.a: Ramírez Sanchez, R., et al. (2012). Orientational distribution for dipolar and quadrupolar colloids driven by an external field. Revista Mexicana de Física; Vol 58, No 1: 104-112. Recuperado de https://repositorio.unam.mx/contenidos/41759

245.1.0.a: Orientational distribution for dipolar and quadrupolar colloids driven by an external field

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Facultad de Ciencias, UNAM

264.#.0.c: 2012

264.#.1.c: 2012-01-01

653.#.#.a: Multipolar colloid; nematics; orientational distribution

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-ND 4.0 Internacional, https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es, fecha de asignación de la licencia 2012-01-01, para un uso diferente consultar al responsable jurídico del repositorio por medio de rmf@ciencias.unam.mx

884.#.#.k: https://rmf.smf.mx/ojs/rmf/article/view/3890

001.#.#.#: oai:ojs.rmf.smf.mx:article/3890

041.#.7.h: eng

520.3.#.a: We study the ordering in dipolar and quadrupolar colloids driven by an appropiate external field, which is low structured at zero field strength. This study consists of analyzing the predictions involved by the one body probability density function, as function of the strength of the field, which is the solution of the equilibrium Smoluchowski equation, without hydrodynamic interactions. Because of the symmetry of the dipole and quadrupole, for the former an axial nematic-like phase is predicted, wheras for the latter a biaxial nematic-like phase is predicted. In the study we consider different fields, for the dipole only the orientation of the field is changed, whereas for the quadrupole the gradient of the field is also changed. The alignment of the multipolar colloids for high values in field is independent of the different fields studied in both moments, but their alignment for low values depends on the field features. The change in curvature of the one body probability density functions for the moments analyzed is predicted in field strength values with a different meaning. For the quadrupole moment an anomalous perpendicular alignment of the particles is predicted, which does not ocurr for the dipole moment. Our results are described as a generalized point of view in the Landau-de Gennes theory for the nematic isotropic phase transition driven by an external field.

773.1.#.t: Revista Mexicana de Física; Vol 58, No 1 (2012): 104-112

773.1.#.o: https://rmf.smf.mx/ojs/rmf/index

046.#.#.j: 2020-11-25 00:00:00.000000

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handle: 29e5aea9c0d77bb6

harvesting_date: 2020-09-23 00:00:00.0

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last_modified: 2020-11-27 00:00:00

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Artículo

Orientational distribution for dipolar and quadrupolar colloids driven by an external field

Ramírez Sanchez, R.; Ruiz Estrada, H.; Alarcón Waess.

Facultad de Ciencias, UNAM, publicado en Revista Mexicana de Física, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Facultad de Ciencias, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Ramírez Sanchez, R., et al. (2012). Orientational distribution for dipolar and quadrupolar colloids driven by an external field. Revista Mexicana de Física; Vol 58, No 1: 104-112. Recuperado de https://repositorio.unam.mx/contenidos/41759

Descripción del recurso

Autor(es)
Ramírez Sanchez, R.; Ruiz Estrada, H.; Alarcón Waess.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Orientational distribution for dipolar and quadrupolar colloids driven by an external field
Fecha
2012-01-01
Resumen
We study the ordering in dipolar and quadrupolar colloids driven by an appropiate external field, which is low structured at zero field strength. This study consists of analyzing the predictions involved by the one body probability density function, as function of the strength of the field, which is the solution of the equilibrium Smoluchowski equation, without hydrodynamic interactions. Because of the symmetry of the dipole and quadrupole, for the former an axial nematic-like phase is predicted, wheras for the latter a biaxial nematic-like phase is predicted. In the study we consider different fields, for the dipole only the orientation of the field is changed, whereas for the quadrupole the gradient of the field is also changed. The alignment of the multipolar colloids for high values in field is independent of the different fields studied in both moments, but their alignment for low values depends on the field features. The change in curvature of the one body probability density functions for the moments analyzed is predicted in field strength values with a different meaning. For the quadrupole moment an anomalous perpendicular alignment of the particles is predicted, which does not ocurr for the dipole moment. Our results are described as a generalized point of view in the Landau-de Gennes theory for the nematic isotropic phase transition driven by an external field.
Tema
Multipolar colloid; nematics; orientational distribution
Idioma
eng
ISSN
2683-2224 (digital); 0035-001X (impresa)

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