scholarly journals Calculation of the effective interaction parameter in theLDA+Umethod by a linear response approach forFe(OH)2

2009 ◽  
Vol 80 (15) ◽  
Author(s):  
Mansoureh Pashangpour ◽  
Amir Abbas Sabouri-Dodaran ◽  
Khadijeh Imani ◽  
Nasser Nafari
Keyword(s):  
Interaction Parameter ◽  
Linear Response ◽  
Effective Interaction

scholarly journals Effective interaction parameter between branched and linear polystyrene

2001 ◽  
Vol 39 (21) ◽  
pp. 2549-2561 ◽  
Author(s):  
C. C. Greenberg ◽  
M. D. Foster ◽  
C. M. Turner ◽  
S. Corona-Galvan ◽  
E. Cloutet ◽  
...  
Keyword(s):  
Interaction Parameter ◽  
Effective Interaction

Effective interaction parameter between topologically distinct polymers

Polymer ◽  
1999 ◽  
Vol 40 (16) ◽  
pp. 4713-4716 ◽  
Author(s):  
C.C. Greenberg ◽  
M.D. Foster ◽  
C.M. Turner ◽  
S. Corona-Galvan ◽  
E. Cloutet ◽  
...  
Keyword(s):  
Interaction Parameter ◽  
Effective Interaction

TOWARD A RIGOROUS THEORY OF THE SCREENED ELECTRON-ELECTRON INTERACTIONS IN METALS

1991 ◽  
Vol 05 (18) ◽  
pp. 2951-2972 ◽  
Author(s):  
HUA CHEN ◽  
DANIEL C. MATTIS
Keyword(s):  
Free Energy ◽  
Spin Density ◽  
Correlation Functions ◽  
Linear Response ◽  
Effective Interaction ◽  
Linear Response Theory ◽  
Density Correlation ◽  
Hubbard Interaction ◽  
Zero Range ◽  
New Formula

A microscopic formula for the effective two-body interaction between electrons or holes in an ideal metal is derived within the linear response theory. Both the zero-range Hubbard interaction U0 and the long-range Coulomb interaction, denoted by ΔV(q), are included. The effective interaction, which is necessarily spin-dependent, is expressed in terms of the exact charge and spin density-density correlation functions and of their higher order mixtures. These correlation functions are analyzed diagrammatically. Attention is paid to clarifying the different roles played by U0 and ΔV(q). We also display the corresponding new formula for the free energy. Comparison is made with previous theories.

scholarly journals LINEAR RESPONSE IN INFINITE NUCLEAR MATTER AS A TOOL TO REVEAL FINITE SIZE INSTABILITIES

2012 ◽  
Vol 21 (05) ◽  
pp. 1250040 ◽  
Author(s):  
A. PASTORE ◽  
K. BENNACEUR ◽  
D. DAVESNE ◽  
J. MEYER
Keyword(s):  
Experimental Data ◽  
Nuclear Matter ◽  
Linear Response ◽  
Effective Interaction ◽  
Finite Size ◽  
Effective Interactions ◽  
Zero Range ◽  
Analytical Expressions ◽  
Range Force ◽  
Rotating Nuclei

Nuclear effective interactions are often modeled by simple analytical expressions such as the Skyrme zero-range force. This effective interaction depends on a limited number of parameters that are usually fitted using experimental data obtained from doubly magic nuclei. It was recently shown that many Skyrme functionals lead to the appearance of instabilities, in particular when symmetries are broken, for example unphysical polarization of odd–even or rotating nuclei. In this paper, we show how the formalism of the linear response in infinite nuclear matter can be used to predict and avoid the regions of parameters that are responsible for these unphysical instabilities.

Effective Interaction Parameter for Homologous Series of Deuterated Polystyrene-block-Poly(n-alkyl methacrylate) Copolymers

2007 ◽  
Vol 40 (21) ◽  
pp. 7644-7655 ◽  
Author(s):  
Du Yeol Ryu ◽  
Changhak Shin ◽  
Junhan Cho ◽  
Dong Hyun Lee ◽  
Jin Kon Kim ◽  
...  
Keyword(s):  
Interaction Parameter ◽  
Homologous Series ◽  
Effective Interaction ◽  
Alkyl Methacrylate ◽  
Methacrylate Copolymers

Effective interaction parameter of linear/star polymer blends and comparison with that of linear/linear and star/star blends

2007 ◽  
Vol 126 (17) ◽  
pp. 174904 ◽  
Author(s):  
P. E. Theodorakis ◽  
A. Avgeropoulos ◽  
J. J. Freire ◽  
M. Kosmas ◽  
C. Vlahos
Keyword(s):  
Polymer Blends ◽  
Interaction Parameter ◽  
Effective Interaction ◽  
Star Polymer

scholarly journals The Reduced Effective Interaction Parameter in Closely Spaced Two-dimensional Hole Systems

2010 ◽  
Author(s):  
L. H. Ho ◽  
A. P. Micolich ◽  
W. R. Clarke ◽  
O. Klochan ◽  
A. R. Hamilton ◽  
...  
Keyword(s):  
Interaction Parameter ◽  
Effective Interaction ◽  
Two Dimensional

Photographic Equidensitometry of High Voltage Electron Images of Thick Noncrystalline Materials

1972 ◽  
Vol 30 ◽  
pp. 594-595
Author(s):  
Keinosuke Kobayashi
Keyword(s):  
High Voltage ◽  
Linear Response ◽  
Thickness Distribution ◽  
Contour Map ◽  
Mass Thickness ◽  
Voltage Electron ◽  
High Voltage Electron ◽  
Homogeneous Particle ◽  
Photographic Emulsions ◽  
Logarithmic Relation

Equidensitometry as developed by E. Lau and W. Krug has been little used in the analysis of ordinary electron photomicrographs, yet its application to the high voltage electron images proves merits of this procedure. Proper sets (families) of equidensities as shown in the next page are able to reveal the contour map of mass thickness distribution in thick noncrystalline specimens. The change in density of the electron micrograph is directly related to the mass thickness of corresponding area in the specimen, because of the linear response of photographic emulsions to electrons and the logarithmic relation between electron opacity and mass thickness of amorphous object.This linearity is verified by equidensitometry of a spherical solid object as shown in Fig. 1a. The object is a large (1 μ) homogeneous particle of polystyrene. Fig. 1b is a composite print of three equidensities of the 1st order prepared from Fig. 1a.

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