A photoferroelectric material is more than the sum of its parts

Efficient Photovoltaic Current Generation at Ferroelectric Domain Walls

(2011) Jan Seidel et al.   PHYSICAL REVIEW LETTERS

Tip-enhanced photovoltaic effects in bismuth ferrite

(2011) Marin Alexe et al.   Nature Communications

Light-induced size changes in BiFeO3 crystals

(2010) B. Kundys et al.   NATURE MATERIALS

Above-bandgap voltages from ferroelectric photovoltaic devices

(2010) S. Y. Yang et al.   Nature Nanotechnology

Domain boundary engineering

(2009) Ekhard Salje et al.   PHASE TRANSITIONS

A Strain-Driven Morphotropic Phase Boundary in BiFeO3

(2009) R. J. Zeches et al.   SCIENCE