نتایج جستجو برای: local density of states
تعداد نتایج: 21274233 فیلتر نتایج به سال:
the major purpose of this study was to develop the translation teacher competency test (ttct) and examine its construct and predictive validity. the present study was conducted in two phases: a qualitative phase as well as a quantitative phase. in the first phase of the study, the author attempted to find out the major areas of competency required for an academic translation teacher. the second...
In this paper, we study the electronic conductance and density of states for a comb-like polymer with periodic hopping energies in the tight-binding approach. Electron transmission coefficient and density of states are analytically calculated by using Green’s function of the system. The results show that the electronic conductance spectrum has one energy gap in the absence of carbon-hydrogen b...
Ara A. Asatryan,1,* Lindsay C. Botten,2 Kejie Fang,3 Shanhui Fan,3 and Ross C. McPhedran4 1Department of Mathematical Sciences, University of Technology, Sydney NSW 2007, Australia 2Department of Mathematical Sciences and the Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), University of Technology, Sydney NSW 2007, Australia 3Department of Electrical Engineering, Stanford Un...
The absorption process of an emitter close to a plasmonic antenna is enhanced due to strong local electromagnetic (EM) fields. The emission, if resonant with the plasmonic system, re-radiates to the far-field by coupling with the antenna via plasmonic states, whose presence increases the local density of states. Far-field collection of the emission of single molecules close to plasmonic antenna...
this is an original study on the effect of a polyisobutylene – polydimethylsiloxane (pibpdms) block copolymer modifier used as an interfacial active agent on the dynamics behaviour of single newtonian drops suspended in a polyisobutylene (pib) newtonian matrix. the results were divided in two sections. the first part included the experiments carried out on the non-modified and 2% block cop...
In quantum dot (QD) electron transport experiments additional features can appear in the differential conductance $dI/dV$ that do not originate from discrete states QD, but rather a modulation of density-of-states (DOS) leads. These are particularly pronounced when leads strongly confined low dimensional systems, such as nanowire (NW) where is one-dimensional and quasi-zero lead-states emerge. ...
The effect of impurities on quantum chemical parameters of single-walled nanotubes (SWNTs) was studied using density functional theory (DFT). The density of states (DOS), Fermi energy and thermodynamic energies of (5,5) carbon nanotubes were calculated in the presence of nitrogen impurity. It was found that this nanotube remains metallic after being doped with one nitrogen atom. The partial den...
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