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Monolithic Silicon Light Sources
Monolithic silicon light sources (LEDs and lasers) could have a significant impact when integrated on silicon chips. After a general introduction to...
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Silicon Fundamentals for Photonics Applications
The many and diverse approaches to materials science problems have greatly enhanced our ability to engineer the physical properties of...
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Monolithic Silicon Microphotonics
The technology evolution of optical interconnection is driven by the distance × product required for a given link. As such optical fiber deployment...
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Polymer-Defined Semiconductor Nanostructures
Semiconductor nanostructures with sizes down to a few nanometers can be defined in different, highly parallel processes with the aid of polymers. In...
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Quantum Cascade Lasers for the Mid-infrared Spectral Range: Devices and Applications
Quantum cascade lasers emitting at λ∼5 µm based on different active region designs are investigated. Using lattice-matched GaInAs/AlInAs on InP...
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From Digital to Analogue Magnetoelectronics: Theory of Transport in Non-collinear Magnetic Nanostructures
Magnetoelectronics is mainly digital, i.e. governed by up and down magnetizations. In contrast, analogue magnetoelectronics makes use of phenomena...
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Models for Food Webs
Food webs are complex systems of many interacting biological species. After summarizing some of their properties, this contribution presents...
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Modeling of Metals and Metal Sponges via Embedded Particle Computer Simulation
In this article we review the embedded atom method when adapted to study solid friction and the mechanical behavior of model metals. The method...
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Order Out of Noise: Maximizing Coherence of Noisy Oscillators
In many nonlinear systems noise can play a constructive role, leading to an appearance of an ordered state. In this paper we describe the effects of...
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Fractional Aharonov-Bohm Oscillations in a Kondo Correlated Few-Electron Quantum Ring
We investigate a small quantum ring fabricated by local oxidation with an atomic force microscope. For strong tunnel coupling to the leads we observe...
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AC-Calorimetry at High Pressure and Low Temperature
Recent developments of the ac-calorimetric technique adapted for the needs of high pressure experiments are discussed. A semi-quantitative...
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Hidden Pseudogap and Superconductivity in Electron Doped High-Temperature Superconductors
The ground state of superconductors is characterized by the long range order of condensed Cooper-pairs. While this is the only order in conventional...
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Real-Space Renormalization and Energy-Level Statistics at the Quantum Hall Transition
We review recent applications of the real-space renormalization group (RG) approach to the integer quantum Hall (QH) transition. The RG approach,...
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Interaction of Palladium Nano-Crystals with Hydrogen During PECVD Growth of Carbon Nanotubes
Using plasma-enhanced chemical vapor deposition (PECVD) with Acetylene and Ammoniac on Pd-specimens Carbon nanotubes (CNT) could be produced...
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Evidence for a Metal-Insulator Transition in Overdoped Cuprates: New Raman Results
Transport properties play a major role in the characterization of correlated metals such as the cuprates. The usual dc and optical conductivity...
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Room Temperature Spin Polarization of Epitaxial Half-Metallic Fe3O4(111) and CrO2(100) Films
The electronic structure of thin epitaxial films of magnetite (Fe3O4) and chromium dioxide (CrO2) has been investigated at 293 K by means of spin-...
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Self-Organized Structures on Flat Crystals: Nanowire Networks Formed by Metal Evaporation
Nanotechnology often requires fabricating large, well-ordered assemblies of nanoscopic components on the surface of a substrate. It has been...
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Scale Invariance and Dynamic Phase Transitions in Diffusion-Limited Reactions
Many systems that can be described in terms of diffusion-limited `chemical' reactions display non-equilibrium continuous transitions separating...
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Pulsed Laser Deposition (PLD) -- A Versatile Thin Film Technique
Pulsed laser deposition (PLD) is for many reasons a versatile technique. Since with this method the energy source is located outside the chamber, the...
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High Critical Fields and Currents in Mechanically Alloyed MgB$_2$
The combination of high critical fields Hc2 and irreversibility fields H^irr and a critical current density jc for example in thin films render MgB2...