Search
Search Results
-
Ultrafast Buildup of a Many-Body Resonance after Femtosecond Excitation of an Electron-Hole Plasma in GaAs
On a femtosecond timescale, we observe how Coulomb screening and collective scattering build up in an extreme nonequilibrium electron-hole plasma...
-
The Chemical Route in Plasma Enhanced Low Pressure Synthesis of c-BN
In the last three years it was shown that plasma enhanced chemical vapor deposition (PECVD) is an interesting alternative to the physical route. This...
-
A Sharp Eye on Thin Films -- Advances through Synchrotron Radiation
The availability of high-brilliance synchrotron radiation has opened new avenues in thin-film research. In recent years new experimental techniques...
-
Another Semiconductor Revolution: This Time It's Lighting!
A 40 year old semiconductor technology, Light Emitting Diodes (LEDs) has steadily improved performance and cost to a point where it will move from...
-
Field-Induced Superconductivity in Films with Magnetic Dots
Magnetic-field-induced superconductivity (FIS) is a rare phenomenon that has been observed up to now in only very few materials. We show that this...
-
Atomic Structure of Alkali Halide Surfaces
The atomic structure of surfaces of alkali halide crystals has been revealed by means of high-resolution dynamic force microscopy. True atomic...
-
Self-Organized InGaAs Quantum Rings -- Fabrication and Spectroscopy
We report on recent experiments on semiconductor quantum rings, fabricated by self-organized Stranski-Krastanov growth. In the first part of this...
-
Carrier Dynamics in III--Nitrides Studied by Time-Resolved Photoluminescence
Recent results on time-resolved photoluminescence (PL) studies for Al-rich AlGaN alloys, InAlGaN quaternary alloys, InGaN/InAlGaN and GaN/AlN...
-
Generation of Coherent Acoustic Phonons in Nitride-Based Semiconductor Nanostructures
In this chapter, we review experimental and theoretical aspects of coherent acoustic phonon generation in nitride-based semiconductor...
-
Chain \protect\mbox{FeRAMs}
A chain FeRAM (TM) is a solution for future high-density and high-speed nonvolatile memory. One memory cell consists of one transistor and one...
-
Nanoscale Phenomena in Ferroelectric Thin Films
In this chapter, recent progress in our group in the area of thin-film ferroelectrics is reviewed. The specific focus is on nanoscale...
-
Static and Dynamic Properties of Domains
The static domain pattern of ferroelectric thin films results from the crystal structure of the film and the misfit strain caused by the...
-
Recent Development in the Preparation of Ferroelectric Thin Films by MOCVD
Recent research by our group, concerned with the preparation of ferroelectric thin films by MOCVD, is summarized. MOCVD has been investigated as a...
-
Ferroelectric Technologies \newline for Portable Equipment
Key technologies for portable equipment are low-voltage operation, low power consumption, and protocol-flexibility. Ferroelectric technology...
-
Physics of Carbon Nanotubes
A brief review is given on electronic and transport properties of carbon nanotubes mainly from a theoretical point of view. The topics include a...
-
Stress, Strain and Magnetic Anisotropy: All Is Different in Nanometer Thin Films
The application of the crystal curvature technique for stress measurements at surfaces and in films is presented. Important aspects regarding sample...
-
Spin-Galvanic Effect and Spin Orientation Induced Circular Photogalvanic Effect in Quantum Well Structures
The spin-galvanic effect and the spin polarization induced circular photogalvanic effect generated by homogeneous optical excitation with circularly...
-
Decoherence of Flux Qubits Coupled to Electronic Circuits
On the way to solid-state quantum computing, overcoming decoherence is the central issue. In this contribution, we discuss the modeling of...
-
Nanoscopic Quantum Rings: A New Perspective
With rapid advances in fabrication of nano-scale devices, quantum rings of nanometer dimensions that are disorder free and contain only a few...
-
Magnetic Orientation in Birds and Other Animals
The use of the geomagnetic field for compass orientation is widespread among animals, with two types of magnetic compass mechanisms described: an...