Dipolar particles trapped in a cylindrical pore - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue EPL - Europhysics Letters Année : 2023

Dipolar particles trapped in a cylindrical pore

Résumé

Abstract: A salient effect of strong confinement, especially when quasi one-dimensional, is to drastically alter the phase behavior and concomitantly the physico-chemical properties of a substance encountered in the bulk. The ground state phase diagram of dipolar hard spheres of diameter d as a function of the pore opening , with D being the cylinder diameter of the confining pore, is investigated theoretically. Whereas finding the densest configurations with hard spheres would be a purely geometrical problem, the situation becomes much more intricate with long-ranged anisotropic interactions. As a major finding, long pores prohibit chain undulation ( helicity ) and wall-contact–free ( floating ) linear chain bundles emerge. These results shed light on recent experimental observations with magnetic colloids in microtubes. Applications in other fields are discussed as well.
Fichier non déposé

Dates et versions

hal-04053759 , version 1 (31-03-2023)

Identifiants

Citer

A. Mourad, H. Mohrbach, R. Messina. Dipolar particles trapped in a cylindrical pore. EPL - Europhysics Letters, 2023, 141 (6), pp.67001. ⟨10.1209/0295-5075/acc12a⟩. ⟨hal-04053759⟩
17 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More