Influence of epitaxial strain on elastocaloric effect in ferroelectric thin films - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Applied Physics Letters Année : 2015

Influence of epitaxial strain on elastocaloric effect in ferroelectric thin films

Résumé

We report the influence of epitaxial strain um on the elastocaloric properties of BaTiO3 thin films. Using thermodynamic calculations, we show that there exists a critical compressive stress r3c at which the elastocaloric effect is maximized for any compressive misfit strain we investigate. Moreover, it is found that jr3cj decreases significantly with decreasing jumj, which is accompanied by a reduction of the elastocaloric response. Interestingly, a several fold enhancement in the electrocaloric effect can be achieved for stress in proximity of r3c. The elastocaloric effect predicted here may find potential cooling applications by combining the stress-mediated electrocaloric effect or designing hybrid elastocaloric/electrocaloric devices in the future.
Fichier principal
Vignette du fichier
Influence_of_epitaxial_strain_on.pdf (815.15 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-01258503 , version 1 (25-08-2020)

Identifiants

Citer

Yang Liu, Wei Jie, Xiaojie Lou, Laurent Bellaiche, James F. Scott, et al.. Influence of epitaxial strain on elastocaloric effect in ferroelectric thin films. Applied Physics Letters, 2015, 106, pp.032901. ⟨10.1063/1.4906198⟩. ⟨hal-01258503⟩
93 Consultations
108 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More