In this paper, we have contrasted modern energy bands theory with classical theory, and have renewed the concept of the resistance with modern energy bands theory.
In this paper, physical origin and development of photonic crystal is investigated on the base of band theory of solid, electromagnetic field theory and light quantum theory respectively.
The sensitivity of the thin film sensors to LPG and H_2 in respect to their operating condition is studied. The effect of doping level on the SnO_2 fiim is also investigated. The density of the surface abrorbed atoms is evaluated from the band theory.
V2 (Zr0.5 Hf0.5) the essentially different behavior of V2 (Zr0.5 Hf0.5) from that of the latter may be attributed to the effect of 4f electrons on the conduction band.
The result that the phonon frequencies of V2Hf0.5 Zr0.3Nb0.2 are harder than that of V2Hf0.5Zr0.5 can be considered as the result of hybridization of conduction band, which is studied for close-packed compounds by means of LMTO (linear combination of muffin-tin orbitals) method[9].
Using the LMTO method, we calculated the EOS for bcc and fcc Lithium with compressibility σ ranging from 1 to 12.The results (σ = 1 - 12, pressure up to 103 GPa) are compared with the experiments (σ 3) and the TF model.
Since the discovery of CNTs, people have employed more serious quantum mechanical methods, including the electronic band theory, tight-binding theory, scattering theory and density function theory, to investigate FE of CNTs.
An abundant set of published experimental NMR/NQR data on electric field gradients in ReBa2Cu3O7-δ high temperature conductors, where Re=Y and Tm, is used as a test for the singlet-correlated band theory.
This agreement explains the successful application of the band theory of quasi-two-dimensional graphite to the description of magnetic properties of nanotubes over a wide temperature range.
This paper presents an overview of the current state of the art in research into the electronic structure and properties of a new superconductor, namely, MgB2, and a large number of related compounds by computational methods of the band theory.
The general properties of hybridized conduction bands were studied in the LMTO representation. General expressions of the density of states N(E) and partial wei-ghts { Bli~k}2 were derived. Introducing a "phase function" yt which corresponds to a certain radial wave function φl, it permits one to derive an analytical approximation for the logarithmic derivative of φl and the phase shift due to a spherically symmetrical potential. Then the analytical behaviour of electronic factor η in electron-phonon coupli...
The hybridization of conduction band is studied for close-packed compounds by means of LMTO method. We emphasize that the heterogeneous coordination would be a necessary condition for intensifying hybridization. In view of the hitherto basic understanding on electron-phonon coupling, a scheme of relation can be outlined as follows:
The superconducting transition temperatures, Tc, and their pressure dependences (?)Tc/(?)P of some C-15 Laves phase compounds, (Zr0.5Hf0.5-xTa)V2 (x≤0.2) and (Hf0.5 Zr0.5-xNbx)V2 (x≤0.2) system, have been studied. A description of the experimental apparatus and results is given. Unlike the cases of (Hf1-xTax)V2and (Zr1-xTax)V2, introduction of Ta in (Zr0.5Hf0.5-xTax)V2 depresses Tc but causes a remarkable higher (?)Tc/ (?)P. So the superconducting transition temperature Tc of (Zr0.5Hf0.45Ta0.05)V2 is higher...
能带论
energy band theory
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