TY - JOUR
T1 - Ferroelectric polycrystals
T2 - Structural and microstructural levers for property-engineering via domain-wall dynamics
AU - Schultheiß, J.
AU - Picht, G.
AU - Wang, J.
AU - Genenko, Y. A.
AU - Chen, L. Q.
AU - Daniels, J. E.
AU - Koruza, J.
N1 - Publisher Copyright:
© 2023 The Author(s)
PY - 2023/7
Y1 - 2023/7
N2 - Ferroelectrics have a spontaneous electrical polarization that is arranged into domains and can be reversed by an externally-applied field. This high versatility makes them useful in enabling components such as capacitors, sensors, and actuators. Key parameters to tune their dielectric, piezoelectric, and electromechanical performance are the domain structure and the dynamic of the domain walls. In fixed compositions, this is often realized by chemical doping. In addition, structural and microstructural parameters, such as grain size, degree of crystallographic texture and porosity play a key role. An important step forward in the field was the fundamental understanding of the link between the local electric and mechanical driving forces and domain wall motion. Here, the impact of crystal structure and microstructure on these driving forces is reviewed and an engineering toolbox is introduced. An overview of advances in the understanding of domain wall motion on the micro- and nanoscale is provided and discussed in terms of the macroscopic functional performance of polycrystalline ferroelectrics/ferroelastics. In addition, a link to theoretical and computational models is established. The review concludes with a discussion about beyond state-of-the-art characterization techniques, new approaches, and future directions toward non-conventionally ordered ferroelectrics for next-generation nanoelectronic and energy-storage applications.
AB - Ferroelectrics have a spontaneous electrical polarization that is arranged into domains and can be reversed by an externally-applied field. This high versatility makes them useful in enabling components such as capacitors, sensors, and actuators. Key parameters to tune their dielectric, piezoelectric, and electromechanical performance are the domain structure and the dynamic of the domain walls. In fixed compositions, this is often realized by chemical doping. In addition, structural and microstructural parameters, such as grain size, degree of crystallographic texture and porosity play a key role. An important step forward in the field was the fundamental understanding of the link between the local electric and mechanical driving forces and domain wall motion. Here, the impact of crystal structure and microstructure on these driving forces is reviewed and an engineering toolbox is introduced. An overview of advances in the understanding of domain wall motion on the micro- and nanoscale is provided and discussed in terms of the macroscopic functional performance of polycrystalline ferroelectrics/ferroelastics. In addition, a link to theoretical and computational models is established. The review concludes with a discussion about beyond state-of-the-art characterization techniques, new approaches, and future directions toward non-conventionally ordered ferroelectrics for next-generation nanoelectronic and energy-storage applications.
KW - Dielectric
KW - Domain wall dynamics
KW - Ferroelectric/Ferroelastic
KW - Piezoelectric
KW - Polycrystalline ceramics
UR - http://www.scopus.com/inward/record.url?scp=85151795050&partnerID=8YFLogxK
U2 - 10.1016/j.pmatsci.2023.101101
DO - 10.1016/j.pmatsci.2023.101101
M3 - Review article
AN - SCOPUS:85151795050
SN - 0079-6425
VL - 136
JO - Progress in Materials Science
JF - Progress in Materials Science
M1 - 101101
ER -