Influence of interfacial coherency on ferroelectric switching of superlattice BaTiO3/SrTiO3
- Univ. of Science and Technology Beijing, Beijing (China); The Pennsylvania State Univ., University Park, PA (United States)
- Univ. of Science and Technology Beijing, Beijing (China)
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Univ. of Wisconsin Madison, Madison, WI (United States)
- Cornell Univ., Ithaca, NY (United States); Kavli Institute at Cornell for Nanoscale Science, Ithaca, NY (United States)
- The Pennsylvania State Univ., University Park, PA (United States)
Switching behavior of (BaTiO3)8/(SrTiO3)4 heterostructure superlattice grown on SrTiO3 substrate was studied by employing the phase field method. To investigate the constraint effect of the substrate on switching, three types of superlattice/substrate interface mechanical relaxation conditions were considered, i.e. the fully ommensurate, partially relaxed and fully relaxed. Our simulation results demonstrated that the hysteresis loops under the three types of constraints were very different. The interfacial coherency affects dramatically the coercivity and remanence of the superlattice films. The mechanism of the hysteresis loop varying with interfacial coherency was analyzed by the ferroelectric domain configuration and its evolution during the switching process. Finally, the hysteresis loop of fully relaxed superlattice shows application potential on ferroelectric energy storage materials.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1274891
- Report Number(s):
- PNNL-SA-106498
- Journal Information:
- Applied Physics Letters, Vol. 107, Issue 12; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Large Polarization and Susceptibilities in Artificial Morphotropic Phase Boundary PbZr 1− x Ti x O 3 Superlattices
|
journal | January 2020 |
A thermodynamic potential, energy storage performances, and electrocaloric effects of Ba 1- x Sr x TiO 3 single crystals
|
journal | March 2018 |
Sr-induced dipole scatter in : Insights from a transferable-bond valence-based interatomic potential
|
journal | November 2019 |
Pinning of a ferroelectric Bloch wall at a paraelectric layer
|
journal | January 2018 |
Similar Records
Electrical properties of ferroelectric BaTiO{sub 3} thin film on SrTiO{sub 3} buffered GaAs by laser molecular beam epitaxy
Ferroelectric properties of LaAlO{sub 3}/BaTiO{sub 3} superlattices prepared by laser molecular-beam epitaxy