External fields act on the order parameter, the tensor which is describing the local order of molecules, driving the liquid crystal cells to their final configuration. The external actions can be an applied magnetic or electric field or the confinement created by the walls of the cell. Here we consider a nematic liquid crystal confined in a cylindrical cell. Besides elasticity, electric field and confinement, we consider the flexoelectricity too. Given the free energy density of the nematic, the corresponding Euler-Lagrange equation is solved numerically. A phase diagram of the director configuration according to the flexoelectricity of the material is obtained.

Flexoelectricity in Nematics Confined to Cylindrical Geometry / Sparavigna, Amelia Carolina. - In: PHILICA. - ISSN 1751-3030. - ELETTRONICO. - 2015:451(2015), pp. 1-5.

Flexoelectricity in Nematics Confined to Cylindrical Geometry

SPARAVIGNA, Amelia Carolina
2015

Abstract

External fields act on the order parameter, the tensor which is describing the local order of molecules, driving the liquid crystal cells to their final configuration. The external actions can be an applied magnetic or electric field or the confinement created by the walls of the cell. Here we consider a nematic liquid crystal confined in a cylindrical cell. Besides elasticity, electric field and confinement, we consider the flexoelectricity too. Given the free energy density of the nematic, the corresponding Euler-Lagrange equation is solved numerically. A phase diagram of the director configuration according to the flexoelectricity of the material is obtained.
2015
File in questo prodotto:
File Dimensione Formato  
Sparavigna, A.C. (2015). Flexoelectricity in Nematics Confined to Cylindrical Geometry. PHILICA.COM Article number 451.pdf

accesso aperto

Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: PUBBLICO - Tutti i diritti riservati
Dimensione 236.75 kB
Formato Adobe PDF
236.75 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2584350
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo