Atomic temperature and density in multicusp H− volume sources

1990 ◽  
Author(s):  
A. M. Bruneteau ◽  
G. Hollos ◽  
R. Leroy ◽  
P. Berlemont ◽  
M. Bacal ◽  
...  
Keyword(s):  
Atomic Temperature

First-principle studies of the lattice dynamics of crystals, and related properties

2005 ◽  
Vol 220 (5/6) ◽  
Author(s):  
Xavier Gonze ◽  
Gian-Marco Rignanese ◽  
Razvan Caracas
Keyword(s):  
Perturbation Theory ◽  
First Principles ◽  
Lattice Dynamics ◽  
Density Functional ◽  
Computational Method ◽  
Dielectric Tensor ◽  
Atomic Temperature ◽  
Density Functional Perturbation Theory ◽  
Infra Red ◽  
Temperature Factors

AbstractThe crystal lattice is never rigid. Due to temperature, external fields or pressure, the nuclei vibrate, the lattice distorts, and instabilities can induce phase transitions. We review the basic concepts of density-functional perturbation theory, a computational method especially suited to determine from first-principles the microscopic parameters governing such behaviour. Then, we present the additional formalism leading to the following properties of minerals: the infra-red and Raman spectra; the prediction of (meta)stability or instability of a crystalline phase, based on the phonon spectrum; the computation of thermodynamics quantities like the free energy, entropy, specific heat; the atomic temperature factors. For each property, examples are given. When appropriate, we mention the computation of related properties, like dielectric tensor and Born effective charges that are needed to get infra-red spectra. Finally, we discuss briefly, on one hand, other applications of the density-functional perturbation theory, and, on the other hand, an alternative technique, the finite-difference computation of dynamical matrices.

Atomic Temperature and Cluster Temperature under Non-steady state

2003 ◽  
Vol 2003.16 (0) ◽  
pp. 503-504
Author(s):  
Koichi Tanaka ◽  
Nobuhiro Takezawa ◽  
Toyoshiro Inamura
Keyword(s):  
Steady State ◽  
Atomic Temperature ◽  
Cluster Temperature

Ab initioheat capacity and atomic temperature factors of chalcopyrites

2007 ◽  
Vol 75 (22) ◽  
Author(s):  
H. Neumann ◽  
J. Łażewski ◽  
P. T. Jochym ◽  
K. Parlinski
Keyword(s):  
Atomic Temperature ◽  
Temperature Factors

Measurement of the atomic temperature of gas discharges through the absorption of ultra-soft x rays

1984 ◽  
Vol 40 (6) ◽  
pp. 643-647 ◽  
Author(s):  
V. D. Peskov ◽  
E. R. Podolyak ◽  
G. P. Prudkovskii
Keyword(s):  
X Rays ◽  
Gas Discharges ◽  
Atomic Temperature
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