Free-Carrier-Compensated Charged Domain Walls Produced with Super-Bandgap Illumination in Insulating Ferroelectrics.
Charged domain walls in ferroelectrics are movable and electronically conducting interfaces inside insulating materials. A simple and reliable method for their artificial production with ultraviolet (UV) light is described. The UV illumination produces free carriers in ferroelectric bulk, which simultaneously promotes the formation of charged domain walls and provides charge for their compensation.
Ceramics Laboratory, Swiss Federal Institute of Technology (EPFL), CH-1015, Lausanne, Switzerland.|Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 18221, Praha 8, Czech Republic.
Petr
P
Bednyakov
Ceramics Laboratory, Swiss Federal Institute of Technology (EPFL), CH-1015, Lausanne, Switzerland.
Tomas
T
Sluka
Ceramics Laboratory, Swiss Federal Institute of Technology (EPFL), CH-1015, Lausanne, Switzerland.
Alexander
A
Tagantsev
Ceramics Laboratory, Swiss Federal Institute of Technology (EPFL), CH-1015, Lausanne, Switzerland.
Dragan
D
Damjanovic
Ceramics Laboratory, Swiss Federal Institute of Technology (EPFL), CH-1015, Lausanne, Switzerland.
Nava
N
Setter
charged domain walls; domain walls; ferroelectrics