S. U. Thiel

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At interfaces between complex oxides, electronic systems with unusual electronic properties can be generated. We report on superconductivity in the electron gas formed at the interface between two insulating dielectric perovskite oxides, LaAlO3 and SrTiO3. The behavior of the electron gas is that of a two-dimensional superconductor, confined to a thin sheet(More)
We report on a large electric-field response of quasi-two-dimensional electron gases generated at interfaces in epitaxial heterostructures grown from insulating oxides. These device structures are characterized by doping layers that are spatially separated from high-mobility quasi-two-dimensional electron gases and therefore present an oxide analog to(More)
Interfaces between complex oxides are emerging as one of the most interesting systems in condensed matter physics. In this special setting, in which translational symmetry is artificially broken, a variety of new and unusual electronic phases can be promoted. Theoretical studies predict complex phase diagrams and suggest the key role of the charge carrier(More)
The frequency assignment problem, known to be NP-complete, is to find an assignment of radio frequencies to a set of transmitters in a region. The interference level between the frequencies assigned to different communication links has to be acceptable, since otherwise communication will be distorted. Consequently, constraints are defined on pairs of links(More)
Electronic confinement at nanoscale dimensions remains a central means of science and technology. We demonstrate nanoscale lateral confinement of a quasi-two-dimensional electron gas at a lanthanum aluminate-strontium titanate interface. Control of this confinement using an atomic force microscope lithography technique enabled us to create tunnel junctions(More)
Lasing mechanisms in organic photonic crystal lasers with two-dimensional distributed feedback, Lasing action in two-dimensional photonic crystal lasers with hexagonal symmetry, Shrinkage precompensation of holographic three-dimensional photonic-crystal templates, Transition between corrugated metal films and split-ring-resonator arrays, Appl. Fabrication(More)
and Nb-doped SrTiO 3 films the Hall constant increases markedly below 100 K (29), it is less temperature dependent in LaAlO 3 /SrTiO 3 hetero-structures. In addition, the upper critical field of the heterostructures is an order of magnitude smaller than that of Nb-SrTiO 3 with the same T c. Finally, our observation of both superconducting and insulating(More)
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