density of states


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density of states

[′den·səd·ē əv ′stāts]
(solid-state physics)
A function of energy E equal to the number of quantum states in the energy range between E and E + dE divided by the product of dE and the volume of the substance.
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We nd that the narrow density of states of N- doped GNRs and the bias-dependent effective coupling between the discrete frontier molecular orbitals and the subbands of electrodes are responsible for the observed NDR behavior.
3 illustrates the density of state (DOS) which plays an important role in various physical systems where HOMO and LUMO are shown by green and blue lines, respectively and region between green and blue lines represents the energy gap.
Figure 2 shows a density of states projected onto both crystal momentum component k parallel to the edge and the distal row of edge atoms.
Thus, knowing the density of states allows researchers to select and manipulate materials to create useful devices.
In terms of a four-band model for room temperature n-type GaSb, the total density of states [[rho].
Following up on this line of investigation, we suggest the possible origins of a low density of states within HOMO-LUMO gap using model calculations.
Appendices address Poisson statistics, parametric amplification, the density of states, low-dimensional semiconductor structures, nuclear magnetic resonance, and Bose-Einstein condensation.
Tenders are invited for Purchase of Multi-mode Ambient Scanning Tunneling Microscope: Topography, Local Density of States and Local Barrier Height
From knowledge of the density of states (15) and calculations of the energy band structure (16), they were able to prove theoretically and to confirm experimentally that this semiconductor becomes a superconductor, albeit at only 0.
The scientists say the configuration is well suited for reducing threshold current in blue lasers, since wide bandgap materials have large optical gain due to the giant joint density of states.