Density of states
THEORY OF PHONON DENSITY OF STATES OF AN ISOTOPICALLY DISORDERED SEMICONDUCTOR CRYSTALS
... harmonic field generates renormalized localized mode frequency and two exciton bound state respectively. These excitations are responsible to broaden the delta function peaks and thus, they are responsible for various ...
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The Temperature Dependence of the Thermodynamic Density of States and Urbach Rule
... Figure 2. Temperature dependence of the thermodynamic density of states calculated from the Formula (3) the solid line. (1) Urbach rule at different temperatures (◊). 1— T = 100 K; 2—T = 200 K; 3—T =300 K; ...
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Physisorption controls the conformation and density of states of an adsorbed porphyrin
... To check for the presence of chemical bonding we have examined in detail the electronic structure of each conformer computing the electron localization function (ELF), charge density di ff erence (CDD), and ...
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K.P Modeling Of The Density Of States Of II-VI Semiconductors
... conduction and valence bands. Thus, we must determine the density of states (DOS). This quantity plays a key role in determining the gain (or absorption) for semiconductor lasers, light-emitting diodes and ...
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Ergodicity of the LLR method for the Density of States
... Abstract. The LLR method is a novel algorithm that enables us to evaluate the density of states in lattice gauge theory. We present our study of the ergodicity properties of the LLR algorithm for the model ...
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Radial oscillations of local density of states in carbon nanotubes
... By performing an analytical study of the electronic structure of metallic carbon nanotubes, we show that the local density of states exhibits well-defined oscillations as a function of the nanotube radius. ...
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High Pressure Band Structure, Density of States, Structural Phase Transition and Metallization in CdS
... In summary, we have investigated the pressure dependent band structure, density of states, structural phase transition and metallization of cubic zinc blende type CdS using FP-LMTO method. Cadmium sulphide ...
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Image resonance in the many-body density of states at a metal surface
... In summary, we have evaluated from first principles the local density of states of a semi-infinite simple metal sur- face. Many-body correlations are included via the GW self-energy. The substrate is ...
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Density of states approach to dense quantum systems
... Before discussing in detail the considered model and our solution technique, we shall outline how the relevant quantities (i.e. the generalised density of states and ob- servables sensitive to strong ...
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Electronic density of states for incommensurate layers
... To approximate an observable of an infinite incommensurate system, we approx- imate local lattice site contributions to the observable. We observe that a site is uniquely defined by its local geometry. Using an ...
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The Temperature Dependence of the Density of States in Semiconductors
... the density of energy states in semiconductors is ...the density of states in the allowed bands, graphs of temperature dependence of the band gap are ...
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Pressure Induced Structural Phase Transition, Metallization and Superconductivity in SodiumIodide (NaI)
... The high pressure band structure, density of states, structural phase transition, metallization and superconductivity of NaI is investigated. When the pressure is increased there is enhanced overlapping ...
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Electronic Properties of Nanoscale Structures/Devices Atomically Engineered on Metal Surfaces
... local density of states evaluated at the Fermi energy (with the density of states of the quantum corral and off-focus magnetic atom subtracted ...local density of states A(r; ω) ...
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Atomistic Simulation for Transition Metal Dichalcogenides using NEMO5 and MedeA-VASP
... This chapter is the basis for the undertaken project, i.e. atomistic simulation of tunneling devices. Simulation of any device starts with a process of defining the working environment, identifying the variables and ...
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Pressure Induced Structural Phase Transition, Metallization and Superconductivity in KI
... 3d states of K as well as 5p, 5d states of ...p states to d state transition of electron in KI, which leads to the increase in d-electron number [13] and increase in the width of the valence band and ...
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Vibrational dynamics in strong glasses: the cases of densified v-SiO2 and v-SiSe2
... QLV are additional non acoustic modes characterized by a large vibrational amplitude of some group of atoms. The physical origin of these modes can be traced to local irregularities of the amorphous structure, or to ...
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Search | Preprints
... of density of states at valence ...than states formed by bonding between Cu-I and S ...the density of states, since they are far from the Fermi ...
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Quantum mechanical spin states and Zeeman level diagrams of the positively charged exciton
... of states and possible optical transitions, whereas the heavy-hole X ⫹ Zeeman-level diagram has fea- tures which are essentially indistinguishable from that of X ⫺ ...final states that results from the ...
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Template effect in TiN/AlN multilayered coatings from first principles
... To provide a deeper understanding of the adsorption process, we calculate charge density and its difference for the relaxed atomic configurations from step 1 to 4 (Fig. 6). The (110) plane has been chosen ...
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Vibrational entropy contributions to the phase stability of iron- and aluminum-based binary alloys
... nomena. It is interesting that defects can have such large anharmonic consequences. At low temperatures, we found that the disruption of a paramagnetic state (by removing the atomic order of the crystal and creating a ...
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