Extraordinary electron systems can be generated at well-defined interfaces between
complex oxides. In recent years, progress has been achieved in exploring and making use …

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 …

Recently a metallic state was discovered at the interface between insulating oxides, most
notably LaAlO3 and SrTiO3. Properties of this two-dimensional electron gas (2DEG) have …

Demonstration of a tunable conductivity of the LaAlO3/SrTiO3 interfaces drew significant
attention to the development of oxide electronic structures where electronic confinement can …

Improving the efficiency of charge separation (CS) and charge transport (CT) is essential for
almost all optoelectronic applications, yet its maximization remains a big challenge. Here we …

One great challenge for supercapacitor is to achieve high energy capacity and fast
charge/discharge rates simultaneously. Porous graphene with large surface area is a …

Oxide interfaces, including the LaAlO3/SrTiO3 interface, have been a subject of intense
interest for over a decade due to their rich physics and potential as low-dimensional …

Superhard materials are of great importance in science and technology, with applications in
abrasives, coatings, cutting, polishing tools, etc. Hardness, in general, is understood as the …

Based on first-principles and model calculations we investigate the effect of polar interfaces
on the ferroelectric stability of thin-film ferroelectrics. As a representative model, we consider …

We report density functional studies of electron rich interfaces between KTaO3 or KNbO3
and CaSnO3 or ZnSnO3 and in particular the nature of the interfacial electron gasses that …