Titre :

Polarization vortex domains induced by switching electric field in ferroelectric films with circular electrodes

Auteur(s) :

Baudry, Laurent [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Sené, Anaïs [Auteur]
Laboratoire des technologies innovantes - UR UPJV 3899 [LTI]
Luk'Yanchuk, Igor A. [Auteur]
Laboratoire de Physique de la Matière Condensée - UR UPJV 2081 [LPMC]
Lahoche, Laurent [Auteur]
Laboratoire des technologies innovantes - UR UPJV 3899 [LTI]
Scott, James F. [Auteur]

Titre de la revue :

Physical Review B: Condensed Matter and Materials Physics (1998-2015)

Pagination :

024102, 7 pages

Éditeur :

American Physical Society

Date de publication :

2014-07-01

ISSN :

1098-0121

Discipline(s) HAL :

Sciences de l'ingénieur [physics]

Résumé en anglais : [en]

We describe ferroelectric thin films with circular electrodes and develop a thermodynamic theory that explains exotic experimental results previously reported. It is found to be especially useful for restricted geometries ...
Lire la suite >We describe ferroelectric thin films with circular electrodes and develop a thermodynamic theory that explains exotic experimental results previously reported. It is found to be especially useful for restricted geometries such as microstructures for which boundary conditions are well known to play an important role in ferroelectric properties. We have explored a switching mechanism that consists of an inhomogeneous rotational motion of the polarization and leads to a vortex state. The vortex appearance exhibits characteristic properties of a first-order field-induced phase transition with three critical electric fields and the possibility of hysteresis behavior.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Non spécifiée

Vulgarisation :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL