In-situ monitoring of epitaxial ferroelectric thin-film growth
Loading...
Date
2021-06-09
Publication Type
Review Article
ETH Bibliography
yes
Citations
Altmetric
Data
Abstract
In ferroelectric thin films, the polarization state and the domain configuration define the macroscopic ferroelectric properties such as the switching dynamics. Engineering of the ferroelectric domain configuration during synthesis is in permanent evolution and can be achieved by a range of approaches, extending from epitaxial strain tuning over electrostatic environment control to the influence of interface atomic termination. Exotic polar states are now designed in the technologically relevant ultrathin regime. The promise of energy-efficient devices based on ultrathin ferroelectric films depends on the ability to create, probe, and manipulate polar states in ever more complex epitaxial architectures. Because most ferroelectric oxides exhibit ferroelectricity during the epitaxial deposition process, the direct access to the polarization emergence and its evolution during the growth process, beyond the realm of existing structuralin situdiagnostic tools, is becoming of paramount importance. We review the recent progress in the field of monitoring polar states with an emphasis on the non-invasive probes allowing investigations of polarization during the thin film growth of ferroelectric oxides. A particular importance is given to optical second harmonic generationin situ. The ability to determine the net polarization and domain configuration of ultrathin films and multilayers during the growth of multilayers brings new insights towards a better understanding of the physics of ultrathin ferroelectrics and further control of ferroelectric-based heterostructures for devices.
Permanent link
Publication status
published
External links
Editor
Book title
Journal / series
Volume
33 (29)
Pages / Article No.
293001
Publisher
IOP Publishing
Event
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
ferroelectric; in situ; SHG; multiferroic; thin films; XRD; domain formation
Organisational unit
03918 - Fiebig, Manfred / Fiebig, Manfred
Notes
Funding
188414 - Multifunctional oxide electronics using natural ferroelectric superlattices (SNF)
196061 - Designing oxide electronics with light (SNF)
694955 - In-situ second harmonic generation for emergent electronics in transition-metal oxides (EC)
196061 - Designing oxide electronics with light (SNF)
694955 - In-situ second harmonic generation for emergent electronics in transition-metal oxides (EC)