Hartree-Fock equations for the internal motion of a finite Fermi system

1984 ◽  
Vol 83 (4) ◽  
pp. 327-338
Author(s):  
F. Miglietta
Keyword(s):  
Fermi System ◽  
Internal Motion ◽  
Finite Fermi System ◽  
Hartree Fock

GENERALIZED HUGENHOLTZ–VAN HOVE THEOREM FOR MULTI-COMPONENT FERMI SYSTEMS WITH MULTI-BODY FORCES

2011 ◽  
Vol 20 (10) ◽  
pp. 2203-2208
Author(s):  
R. C. NAYAK ◽  
S. PATTNAIK
Keyword(s):  
Fermi System ◽  
Fermi Systems ◽  
Body Interaction ◽  
Hartree Fock ◽  
Interaction Terms ◽  
Body Forces ◽  
Good For ◽  
Multi Body

We show here that the Hugenholtz–Van Hove theorem for an infinite Fermi system remains valid even with all possible multi-body interaction terms taken into account either separately or in any combination under Hartree–Fock approximation. We further extend the theorem to obtain its most generalized form that would hold good for any multi-component Fermi system.

Free surface response in a finite Fermi system

1998 ◽  
Vol 57 (5) ◽  
pp. 2342-2350 ◽  
Author(s):  
V. I. Abrosimov ◽  
O. I. Davidovskaja ◽  
V. M. Kolomietz ◽  
S. Shlomo
Keyword(s):  
Free Surface ◽  
Fermi System ◽  
Finite Fermi System ◽  
Surface Response

scholarly journals Oscillations of the inertia moment of a finite Fermi system in the cranking model framework

2013 ◽  
Vol 176 (3) ◽  
pp. 1220-1235 ◽  
Author(s):  
A. A. Khamzin ◽  
A. S. Nikitin ◽  
A. S. Sitdikov ◽  
D. A. Roganov
Keyword(s):  
Fermi System ◽  
Finite Fermi System ◽  
Model Framework ◽  
Inertia Moment

Monopole modes in a finite Fermi system with diffuse reflection boundary conditions

1994 ◽  
Vol 571 (1) ◽  
pp. 117-131 ◽  
Author(s):  
V.M. Kolomietz ◽  
A.G. Magner ◽  
V.M. Strutinsky ◽  
S.M. Vydrug-Vlasenko
Keyword(s):  
Boundary Conditions ◽  
Diffuse Reflection ◽  
Fermi System ◽  
Finite Fermi System ◽  
Reflection Boundary

Study of charge transfer in FeTi

1983 ◽  
Vol 41 ◽  
pp. 296-297
Author(s):  
J. Taft∅
Keyword(s):  
Charge Transfer ◽  
Charge Distribution ◽  
Electron Scattering ◽  
Periodic System ◽  
Electron Distribution ◽  
Scattering Amplitude ◽  
Transition Elements ◽  
Hartree Fock ◽  
Cscl Structure ◽  
The Right

It is well known that for reflections corresponding to large interplanar spacings (i.e., sin θ/λ small), the electron scattering amplitude, f, is sensitive to the ionicity and to the charge distribution around the atoms. We have used this in order to obtain information about the charge distribution in FeTi, which is a candidate for storage of hydrogen. Our goal is to study the changes in electron distribution in the presence of hydrogen, and also the ionicity of hydrogen in metals, but so far our study has been limited to pure FeTi. FeTi has the CsCl structure and thus Fe and Ti scatter with a phase difference of π into the 100-ref lections. Because Fe (Z = 26) is higher in the periodic system than Ti (Z = 22), an immediate “guess” would be that Fe has a larger scattering amplitude than Ti. However, relativistic Hartree-Fock calculations show that the opposite is the case for the 100-reflection. An explanation for this may be sought in the stronger localization of the d-electrons of the first row transition elements when moving to the right in the periodic table. The tabulated difference between fTi (100) and ffe (100) is small, however, and based on the values of the scattering amplitude for isolated atoms, the kinematical intensity of the 100-reflection is only 5.10-4 of the intensity of the 200-reflection.

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