Reconstruction of the electron momentum density distribution by the Maximum Entropy Method

1996 ◽  
Vol 383 (2-3) ◽  
pp. 589-600 ◽  
Author(s):  
L. Dobrzyński ◽  
A. Holas
Keyword(s):  
Density Distribution ◽  
Maximum Entropy ◽  
Maximum Entropy Method ◽  
Momentum Density ◽  
Entropy Method ◽  
Electron Momentum ◽  
Electron Momentum Density

Reconstruction of Momentum Density Distribution from 2D ACAR Data via Maximum Entropy and Cormack Methods

2010 ◽  
Vol 666 ◽  
pp. 151-154
Author(s):  
M. Pylak ◽  
Ludwik Dobrzyński ◽  
G. Kontrym-Sznajd
Keyword(s):  
Density Distribution ◽  
Maximum Entropy ◽  
Maximum Entropy Method ◽  
Momentum Density ◽  
Entropy Method ◽  
Annihilation Radiation ◽  
Two Dimensional ◽  
Electron Momentum ◽  
Radiation Data ◽  
Good Agreement

Novel application of Maximum Entropy method to the reconstruction of electron momentum density distribution from line projections is presented. Our new algorithm is applied to two dimensional angular correlation of annihilation radiation data in Gd. Reconstructed densities are in very good agreement with corresponding densities reconstructed by Cormack’s method.

Electron Momentum Density Distribution in Cobalt Disilicide: Analysis by the Maximum Entropy Method

2001 ◽  
Vol 215 (11) ◽  
Author(s):  
Ch. Bellin ◽  
L. Dobrzynski ◽  
H. Kouba ◽  
G. Loupias ◽  
T. Buslaps ◽  
...  
Keyword(s):  
Maximum Entropy Method ◽  
Three Dimensional ◽  
Momentum Density ◽  
European Synchrotron Radiation Facility ◽  
Entropy Method ◽  
Second Step ◽  
Cobalt Disilicide ◽  
Electron Momentum ◽  
Electron Momentum Density ◽  
Structure Calculations

New cobalt disilicide high resolution Compton scattering measurements have been performed at ESRF (European Synchrotron radiation facility) in France. In a first step, experimental results are compared with calculated results, obtained from a self consistent linear muffin tin orbitals band structure calculations. The second step consists in studying three dimensional electron momentum density (EMD) distribution – 3D map – in CoSi

Electron momentum density distribution in TiCu

2011 ◽  
Vol 19 (5) ◽  
pp. 666-670 ◽  
Author(s):  
G. Sharma ◽  
V. Sharma ◽  
M.C. Mishra ◽  
M.S. Dhaka ◽  
B.K. Sharma
Keyword(s):  
Density Distribution ◽  
Momentum Density ◽  
Electron Momentum ◽  
Electron Momentum Density

Z-MEM, Maximum Entropy Method software for electron/nuclear density distribution in Z-Code

2018 ◽  
Vol 551 ◽  
pp. 472-475 ◽  
Author(s):  
Yoshihisa Ishikawa ◽  
Junrong Zhang ◽  
Ryoji Kiyanagi ◽  
Masao Yonemura ◽  
Takeshi Matsukawa ◽  
...  
Keyword(s):  
Density Distribution ◽  
Maximum Entropy ◽  
Maximum Entropy Method ◽  
Entropy Method ◽  
Nuclear Density

Electron Density Distribution Obtained from X-Ray Powder Data by the Maximum Entropy Method

1991 ◽  
Vol 35 (A) ◽  
pp. 77-83 ◽  
Author(s):  
Makoto Sakata ◽  
Masaki Takata ◽  
Yoshiki Kubota ◽  
Tatsuya Uno ◽  
Shintaro Kuhazawa ◽  
...  
Keyword(s):  
Density Distribution ◽  
Maximum Entropy ◽  
Electron Density ◽  
Diffraction Data ◽  
Electron Density Distribution ◽  
Maximum Entropy Method ◽  
Entropy Method ◽  
Nuclear Density ◽  
X Ray ◽  
Distribution Maps

AbstractThe electron density distribution maps for CaF2 and TiO2 (rutile) were obtained from profile fitting of powder diffraction data by a Maximum Entropy Method (MEM) analysis. The resultant electron density maps show clearly the nature of the chemical bonding. In order to interpret the results, the nuclear density distribution was also obtained for rutile from powder neutron diffraction data. In the electron density map for rutile obtained by HEM analysis from the X-ray data, both apical and equatorial bonding can be seen. On the other hand, the nuclear density of rutile Is very simple and shows the thermal vibration of nuclei.

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