Electron Band Alignment at Interfaces of Semiconductors with
... pertain to the interfaces of bulk-liked semiconductors. These results provide the frame of reference for future evaluation of other physical effects which may affect the electronic structure of solids such as strain, doping, or quantum confinement of electron states. For example, significant size-de ...
... pertain to the interfaces of bulk-liked semiconductors. These results provide the frame of reference for future evaluation of other physical effects which may affect the electronic structure of solids such as strain, doping, or quantum confinement of electron states. For example, significant size-de ...
Atomic and molecular clusters in intense laser pulses Dissertation
... clusters, consisting of different atoms or molecules, which are at the focus of this thesis, there is an additional degree of freedom, the ratio between different species. Hence, another question can be posed: “How do cluster properties change as a function of the ratio between different species?” C ...
... clusters, consisting of different atoms or molecules, which are at the focus of this thesis, there is an additional degree of freedom, the ratio between different species. Hence, another question can be posed: “How do cluster properties change as a function of the ratio between different species?” C ...
Investigation of the longitudinal charge distribution of electron
... spite of this, radiation sources of the 1st generation were more advantageous than the common laboratory sources, because of the polarization and the short pulse length. Due to the success of the synchrotron-light experiments and the growing community of experimenters, particle storage-rings were bu ...
... spite of this, radiation sources of the 1st generation were more advantageous than the common laboratory sources, because of the polarization and the short pulse length. Due to the success of the synchrotron-light experiments and the growing community of experimenters, particle storage-rings were bu ...
Many-body phases of open Rydberg systems and signatures of
... Rydberg states. Topological order is at the heart of materials relevant for modern technology and schemes based on topological excitations are among the most promising candidates for the realization of a robust quantum computer [8]. The discovery of the quantum Hall effect revealed that the classifi ...
... Rydberg states. Topological order is at the heart of materials relevant for modern technology and schemes based on topological excitations are among the most promising candidates for the realization of a robust quantum computer [8]. The discovery of the quantum Hall effect revealed that the classifi ...
momentum-space dynamics of runaway electrons
... Fast electrons in a plasma experience a friction force that decreases with increasing particle speed, and may therefore be continuously accelerated by sufficiently strong electric fields. These so-called runaway electrons may quickly reach relativistic speeds. This is problematic in tokamaks – devic ...
... Fast electrons in a plasma experience a friction force that decreases with increasing particle speed, and may therefore be continuously accelerated by sufficiently strong electric fields. These so-called runaway electrons may quickly reach relativistic speeds. This is problematic in tokamaks – devic ...
DEPARTAMENT DE FÍSICA APLICADA I ELECTROMAGNETISME STRUCTURAL, OPTICAL AND MAGNETIC
... GaAs, which are used in industry. Moreover, their Curie temperatures are somewhat low and their crystal growth is difficult. Therefore, magnetic semiconductors based on non-magnetic semiconductors would be more convenient. Such materials could have applications in magnetooptics and spintronics [20], ...
... GaAs, which are used in industry. Moreover, their Curie temperatures are somewhat low and their crystal growth is difficult. Therefore, magnetic semiconductors based on non-magnetic semiconductors would be more convenient. Such materials could have applications in magnetooptics and spintronics [20], ...
Manganese in Indium Arsenide: Charge Switching and Electronic
... well. Atomic-scale features, adsorbed atoms and semiconductor dopants have been studied with the STM since its invention in the 1980’s[10–14]. Improvements of stability and precision, as well as the advancement of low-temperature instruments continues to make smaller structures and smaller effects a ...
... well. Atomic-scale features, adsorbed atoms and semiconductor dopants have been studied with the STM since its invention in the 1980’s[10–14]. Improvements of stability and precision, as well as the advancement of low-temperature instruments continues to make smaller structures and smaller effects a ...
Low energy electrons
... molecules [24]. In 1970, the first experiments which could resolve the angular distribution of the fragments were conducted [123]. For many years angular distributions were measured using either a movable electron gun or a movable detector setup, similar to the experiments used for electron impact e ...
... molecules [24]. In 1970, the first experiments which could resolve the angular distribution of the fragments were conducted [123]. For many years angular distributions were measured using either a movable electron gun or a movable detector setup, similar to the experiments used for electron impact e ...
exploring cosmic strings: observable effects and cosmological
... (super)string loops in the early universe. Abundance of such moduli is constrained by diffuse gamma ray background, dark matter, and primordial element abundances. These constraints put an upper bound on the string tension as strong as Gµ . 10−28 for a wide range of modulus mass m. If the modulus co ...
... (super)string loops in the early universe. Abundance of such moduli is constrained by diffuse gamma ray background, dark matter, and primordial element abundances. These constraints put an upper bound on the string tension as strong as Gµ . 10−28 for a wide range of modulus mass m. If the modulus co ...
Pdf
... simulations. Classical simulations are able to simulate much larger systems and can access time scales that are orders of magnitude longer than first-principles studies. The calculation of several properties is facilitated by these advantages. For example, several dynamic properties rely on the calcu ...
... simulations. Classical simulations are able to simulate much larger systems and can access time scales that are orders of magnitude longer than first-principles studies. The calculation of several properties is facilitated by these advantages. For example, several dynamic properties rely on the calcu ...
Prof.P. Ravindran, Lattice Dynamics-1
... Our analysis will be restricted to lattice vibrations of small amplitude. Since the solid is then close to a position of stable equilibrium, its motion can be calculated by a generalization of the method used to analyse a simple harmonic oscillator. The small amplitude limit is known as harmonic lim ...
... Our analysis will be restricted to lattice vibrations of small amplitude. Since the solid is then close to a position of stable equilibrium, its motion can be calculated by a generalization of the method used to analyse a simple harmonic oscillator. The small amplitude limit is known as harmonic lim ...
Role of Plasma and Doping Elements on the
... Carbon nanotubes (CNTs) show excellent electron field emission properties because of their high aspect ratio, high chemical stability and thermal conductivity. The field emission from CNT is regarded as the most promising application of this nanostructure because they give very high values of curren ...
... Carbon nanotubes (CNTs) show excellent electron field emission properties because of their high aspect ratio, high chemical stability and thermal conductivity. The field emission from CNT is regarded as the most promising application of this nanostructure because they give very high values of curren ...
Density of states
In solid-state and condensed matter physics, the density of states (DOS) of a system describes the number of states per interval of energy at each energy level that are available to be occupied. Unlike isolated systems, like atoms or molecules in gas phase, the density distributions are not discrete like a spectral density but continuous. A high DOS at a specific energy level means that there are many states available for occupation. A DOS of zero means that no states can be occupied at that energy level. In general a DOS is an average over the space and time domains occupied by the system. Localvariations, most often due to distortions of the original system, are often called local density of states (LDOS). If the DOS of an undisturbedsystem is zero, the LDOS can locally be non-zero due to the presence of a local potential.