Zobrazeno 1 - 9
of 9
pro vyhledávání: '"[PACS] Transitions in liquid crystals"'
Publikováno v:
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
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The surface phase behavior of binary mixtures of colloidal hard rods in contact with a solid substrate (hard wall) is studied, with special emphasis on the region of the phase diagram that includes the smectic A phase. The colloidal rods are modelled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74670470e002e37918b0b1fd10b4df49
https://doi.org/10.1103/physreve.81.021706
https://doi.org/10.1103/physreve.81.021706
Publikováno v:
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
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Web of Science
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Web of Science
It is known that when hard spheres are added to a pure system of hard rods the stability of the smectic phase may be greatly enhanced, and that this effect can be rationalised in terms of depletion forces. In the present paper we first study the effe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be41adf3d1fe3bb1998a12f3508a28ad
http://arxiv.org/abs/0704.1140
http://arxiv.org/abs/0704.1140
Autor:
Yuri Martínez-Ratón
Publikováno v:
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
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In this article we calculate the surface phase diagram of a two-dimensional hard-rod fluid confined between two hard lines. In a first stage we study the semi-infinite system consisting of an isotropic fluid in contact with a single hard line. We hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bc83c956b362b9e7b09866960bc12a2
http://hdl.handle.net/10016/7001
http://hdl.handle.net/10016/7001
Publikováno v:
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
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Using scaled-particle theory for binary mixtures of two-dimensional hard particles with rotational freedom, we analyse the stability of nematic phases and the demixing phase behaviour of a variety of mixtures, focussing on cases where at least one of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9756a04f47dc310ff28c9ef1d45a7739
http://hdl.handle.net/10016/6999
http://hdl.handle.net/10016/6999
Publikováno v:
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
instname
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Scaled particle theory for a binary mixture of hard discorectangles and for a binary mixture of hard rectangles is used to predict possible liquid-crystal demixing scenarios in two dimensions. Through a bifurcation analysis from the isotropic phase,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e3e9453f8318274ec939d0b125866c6
http://hdl.handle.net/10016/7012
http://hdl.handle.net/10016/7012
Autor:
Yuri Martínez-Ratón
Publikováno v:
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
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The phase diagram of prolate and oblate particles in the restricted orientations approximation (Zwanzig model) is calculated. Transitions to different inhomogeneous phases (smectic, columnar, oriented, or plastic solid) are studied through minimizati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22f1841846f338762d032fed9a062d9e
http://arxiv.org/abs/cond-mat/0311631
http://arxiv.org/abs/cond-mat/0311631
Autor:
José A. Cuesta, Yuri Martínez-Ratón
Publikováno v:
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
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The phase diagram of a polydisperse mixture of uniaxial rod-like and plate-like hard parallelepipeds is determined for aspect ratios $\kappa=5$ and 15. All particles have equal volume and polydispersity is introduced in a highly symmetric way. The co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c2b5698a371f768ad438e109dbf3d8b
https://hdl.handle.net/10016/7036
https://hdl.handle.net/10016/7036
Autor:
Yuri Martinez-Raton
Publikováno v:
Martinez-Raton
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
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e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
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I study the effect of length polydispersity in the surface phase diagram of hard rods interacting with a hard wall. The properly extended interface Gibbs-Duhem equation for a polydisperse system allows us to predict the behaviour of the surface tensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75ba5a73d264990671690145b7a4ddb9
Publikováno v:
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
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ResearcherID
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5 pages, 2 figures.-- PACS nrs.: 61.30.Cz, 61.30.Hn, 64.70.M-. We outline the elements of a mean-field density functional theory of inhomogeneous liquid crystals which is able to account for surface-enhanced smectic ordering (SESO) at a free surface.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::570f7c0612885f0faa5ec7573e1fcb13
http://hdl.handle.net/10016/7097
http://hdl.handle.net/10016/7097