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Probing the Parity and Spin State
Classification into classes of superconductors with singlet and triplet pairing, respectively, needs information on the parity and spin state of the...
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Semiconductor Few-Electron Quantum Dots as Spin Qubits
The spin of an electron placed in a magnetic field provides a natural two-level system suitable as a qubit in a quantum computer[1]. In this work, we...
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Ion Microscopy on Diamond
Because of its physical properties (strong radiation hardness, wide energy gap with a consequent extremely low dark current, very large electron and...
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Laser Ablation-Deposited CN x Thin Films
Amorphous CN x thin films were deposited at room temperature by pulsed laser ablation of graphite targets in a...
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Defects in CVD Diamond Films from Their Response as Nuclear Detectors
CVD diamond films can be used to realize nuclear detectors with outstanding working capability in harsh environments. Since efficient particle...
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Sol-Gel Approaches to Photonic Crystal Systems
A prerequisite for an efficient ”molding the flow of light” by photonic crystals is the molding of materials in desired nanostructures. Very often,...
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Electromagnetic Radiation from a Charged Particle in Crystals: Qualitative Consideration
Electromagnetic radiation caused by motion of a charged particle has been studied for more than 100 years. It was firmly believed for an appreciable...
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Probing the Vortices: Lattice Symmetry and Internal Structure
A spatial variation of the superconducting properties occurs when a magnetic field is present perpendicular to the surface of a type-II...
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Raman Spectroscopy and Optical Properties of Amorphous Diamond-Like Carbon Films
The Raman spectroscopy and optical characterization of amorphous hydrogen-free diamond-like carbon films is described. The samples were prepared by...
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Vibrational Spectroscopy in Ion–Irradiated Carbon–Based Thin Films
In this work we present and discuss some selected experiments on ion–irradiated carbon–based thin films. Vibrational spectroscopy is used to...
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Thermodynamics – Past, Present and Future
We begin with historical remarks on the basic contributions to thermodynamics and statistics with some bias to scientists working in Berlin as...
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Intrinsic Spin Hall Effect
A brief review is given on a spin Hall effect, where an external electric field induces a transverse spin current. It has been recognized over 30...
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Dynamical Variational Principles for Strongly Correlated Electron Systems
The self-energy-functional approach (SFA) is discussed in the context of different variational principles for strongly correlated electron systems....
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Chemistry and Morphological Properties of Metal Interfaces to Organic Semiconductors
Metal contacts to organic semiconductors play a decisive role for the performance of organic based devices such as organic light emitting diodes,...
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Two-Gap Superconductivity in Magnesium Diboride
It is by now generally accepted that the recently discovered superconductor MgB2 is a superconductor with two energy gaps. Here we discuss how this...
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Atomic-Scale Properties of High-k Dielectrics: Ab Initio Study for Pr-Based Materials
We discuss the atomic and electronic structures and energetics of native point defects and of impurities (Si, Ti, B, moisture) in PrO1.5 and, to some...
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Dynamics of Membranes: From Passive to Active Systems
Fluid lipid membranes, which, together with filamentous proteins like actin, form the basic structural component of cells, have been a central topic...
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AlGaN/GaN Electrolyte-Gate Field-Effect Transistors as Transducers for Bioelectronic Devices
AlGaN/GaN electrolyte gate field-effect transistors are assessed as a transducer device for biosensor applications. Their low-frequency noise power...
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Local Structure, Composition and Electronic Properties of Rare Earth Oxide Thin Films Studied Using Advanced Transmission Electron Microscopy Techniques (TEM-EELS)
This contribution aims to demonstrate the ability of transmission electron microscopy (TEM) and its associated techniques, high-resolution...
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Rare Earth Oxides Grown by Molecular Beam Epitaxy for Ultimate Scaling
Combination of lanthanum and other rare earth oxides with HfO2 yields stable compounds which withstand transistor processing and have low gate...