37 citations · 169 across the 12 of their papers we have counts for
12 papers
Electronic structure, band offset, and interface electron population of the LaInO/BaSnO system
G. Hoffmann, A. A. Riaz, C. Kalha +7
Perovskite oxides and their heterostructures exhibit a wide range of functional properties. Among these materials, BaSnO/LaInO heterostructures form high-mobility two-dimen…
Switchable polarization in non-ferroelectric SrTiO
Wahib Aggoune, Matthias Scheffler
Perovskites with tunable and switchable polarization hold immense promise for unlocking novel functionalities. Using density-functional theory, we reveal that intrinsic defects can…
Similarity of materials and data-quality assessment by fingerprinting
Martin Kuban, Šimon Gabaj, Wahib Aggoune +3
Identifying similar materials, i.e., those sharing a certain property or feature, requires interoperable data of high quality. It also requires means to measure similarity. We demo…
How ferroelectric BaTiO can tune a two-dimensional electron gas at the interface of LaInO3 and BaSnO: a first-principles study
Le Fang, Wahib Aggoune, Wei Ren +1
The emerging interest in two-dimensional electron gases (2DEGs), formed at interfaces between two insulating oxide perovskites poses crucial fundamental question in view of future…
Two-dimensional electron gas at LaInO/BaSnO interfaces controlled by a ferroelectric layer
Le Fang, Wahib Aggoune, Wei Ren +1
With the example of LaInO/BaSnO, we demonstrate how both density and distribution of a two-dimensional electron gas (2DEG) formed at the interface between these perovskit…
A consistent picture of excitations in cubic BaSnO revealed by combining theory and experiment
Wahib Aggoune, Alberto Eljarrat, Dmitrii Nabok +6
Among the transparent conducting oxides, the perovskite barium stannate is most promising for various electronic applications due to its outstanding carrier mobility achieved at ro…
Tuning two-dimensional electron (hole) gases at LaInO/BaSnO interfaces: Impact of polar distortions, termination, and thickness
Wahib Aggoune, Claudia Draxl
Two-dimensional election gases (2DEG), arising due to quantum confinement at interfaces between transparent conducting oxides, have received tremendous attention in view of electro…
Fingerprints of optical absorption in the perovskite LaInO: Insight from many-body theory and experiment
Wahib Aggoune, Klaus Irmscher, Dmitrii Nabok +5
We provide a combined theoretical and experimental study of the electronic structure and the optical absorption edge of the orthorhombic perovskite LaInO. Employing density-f…
The role of the interface in controlling the epitaxial relationship between orthorhombic and cubic
Martina Zupancic, Wahib Aggoune, Toni Markurt +5
Epitaxial perovskite oxide interfaces with different symmetry of the epitaxial layers have attracted considerable attention due to the emergence of novel behaviors and phenomena. I…
Structural, electronic, and optical properties of periodic graphene/h-BN van der Waals heterostructures
Wahib Aggoune, Caterina Cocchi, Dmitrii Nabok +3
The emerging interest in van der Waals heterostructures as new materials for opto-electronics and photonics poses questions about their stability and structure-property relations.…
Dimensionality of excitons in stacked van der Waals materials: The example of hexagonal boron nitride
Wahib Aggoune, Caterina Cocchi, Dmitrii Nabok +3
With the example of hexagonal boron nitride, we demonstrate how the character of electron-hole (e-h) pairs in van der Waals bound low-dimensional systems is driven by layer stackin…
Enhanced Light-Matter Interaction in Graphene/h-BN van der Waals Heterostructures
Wahib Aggoune, Caterina Cocchi, Dmitrii Nabok +3
By investigating the optoelectronic properties of prototypical graphene/hexagonal boron nitride (h-BN) heterostructures, we demonstrate how a nanostructured combination of these ma…