Probing charge density in materials with atomic resolution in real space
The charge distribution in materials at the nanoscale can often explain the origin of
macroscopic properties such as localized conductivity or the plasmonic response and …
macroscopic properties such as localized conductivity or the plasmonic response and …
Screening mechanisms at polar oxide heterointerfaces
The interfaces of polar oxide heterostructures can display electronic properties unique from
the oxides they border, as they require screening from either internal or external sources of …
the oxides they border, as they require screening from either internal or external sources of …
Anisotropic polarization-induced conductance at a ferroelectric–insulator interface
Coupling between different degrees of freedom, that is, charge, spin, orbital and lattice, is
responsible for emergent phenomena in complex oxide heterostrutures,. One example is the …
responsible for emergent phenomena in complex oxide heterostrutures,. One example is the …
Composition-dependent photocatalytic activity and high-mobility carrier gas in NaTaO3/BaBiO3 heterojunctions
Perovskite oxide heterostructures have been extensively investigated for their excellent
nanoelectronics and photocatalytic properties. Herein, the general features of monoclinic …
nanoelectronics and photocatalytic properties. Herein, the general features of monoclinic …
Domain patterns and super-elasticity of freestanding BiFeO3 membranes via phase-field simulations
Super-elasticity of functional ferroelectric oxides offers promises for integrating ferroelectric
films into flexible electronics. However, super-elastic deformation is a complex phenomenon …
films into flexible electronics. However, super-elastic deformation is a complex phenomenon …
Band alignment at heteroepitaxial perovskite oxide interfaces. Experiments, methods, and perspectives
Recent advances in the growth of epitaxial oxide thin films have fostered a steady increase
of research on perovskite oxide heterojunctions, which are now produced with …
of research on perovskite oxide heterojunctions, which are now produced with …
First-principles study of two-dimensional electron and hole gases at the head-to-head and tail-to-tail domain walls in ferroelectric thin films
We study from first principles the structural and electronic properties of head-to-head (HH)
and tail-to-tail (TT) 180∘ domain walls in isolated free-standing PbTiO 3 slabs. For …
and tail-to-tail (TT) 180∘ domain walls in isolated free-standing PbTiO 3 slabs. For …
Direct observation of polarization-induced two-dimensional electron/hole gases at ferroelectric-insulator interface
Two-dimensional electron gas or hole gas (2DEG or 2DHG) and their functionalities at
artificial heterostructure interfaces have attracted extensive attention in recent years. Many …
artificial heterostructure interfaces have attracted extensive attention in recent years. Many …
Electrostatics and domains in ferroelectric superlattices
The electrostatics arising in ferroelectric/dielectric two-dimensional heterostructures and
superlattices is revisited within a Kittel model in order to define and complete a clear …
superlattices is revisited within a Kittel model in order to define and complete a clear …
Prediction of two-dimensional electron gas mediated magnetoelectric coupling at ferroelectric heterostructures
First-principles calculations predict the emergence of magnetoelectric coupling mediated by
two-dimensional electron gas (2DEG) at the ferroelectric PbTiO 3/SrTiO 3 heterostructure …
two-dimensional electron gas (2DEG) at the ferroelectric PbTiO 3/SrTiO 3 heterostructure …