scholarly journals THE SPIN POLARIZED HARTREE-FOCK METHOD AND THE CONTRIBUTION OF CORE POLARIZATION TO HYPERFINE FIELDS OF 4d IONS

1964 ◽  
Author(s):  
A.J. Freeman ◽  
P. Bagus ◽  
R.E. Watson
Keyword(s):  
Hyperfine Fields ◽  
Core Polarization ◽  
Hartree Fock ◽  
Spin Polarized

scholarly journals New Transition and Energy Levels of Three-Times Ionized Krypton (Kr IV)

Atoms ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 48
Author(s):  
M. Raineri ◽  
M. Gallardo ◽  
J. Reyna Almandos ◽  
A. G. Trigueiros ◽  
C. J. B. Pagan
Keyword(s):  
Transition Probabilities ◽  
Energy Levels ◽  
Pulsed Discharge ◽  
Core Polarization ◽  
Polarization Effects ◽  
Hartree Fock ◽  
Theta Pinch ◽  
New Energy ◽  
First Time

A capillary pulsed-discharge and a theta-pinch were used to record Kr spectra in the region of 330–4800 Å. A set of 168 transitions of these spectra were classified for the first time. We extended the analysis to twenty-five new energy levels belonging to 3s23p24d, 3s23p25d even configurations. We calculated weighted transition probabilities (gA) for all of the experimentally observed lines and lifetimes for new energy levels using a relativistic Hartree–Fock method, including core-polarization effects.

Spin polarized hartree-fock calculations for small Li and Be clusters with and without a hydrogen impurity

1983 ◽  
Vol 15 (1-4) ◽  
pp. 537-537
Author(s):  
A. Hintermann ◽  
A. M. Stoneham ◽  
A. H. Harker
Keyword(s):  
Hydrogen Impurity ◽  
Hartree Fock ◽  
Spin Polarized

Spin-polarized Hartree-Fock approximation at nonzero temperatures

1995 ◽  
Vol 51 (24) ◽  
pp. 17417-17430 ◽  
Author(s):  
Suklyun Hong ◽  
G. D. Mahan
Keyword(s):  
Hartree Fock ◽  
Spin Polarized

Monopole core polarization in a Hartree-Fock basis

1974 ◽  
Vol 49 (1) ◽  
pp. 23-28 ◽  
Author(s):  
P.J. Ellis ◽  
E. Osnes
Keyword(s):  
Core Polarization ◽  
Hartree Fock

A microscopic study of spin-polarized neutron matter

2021 ◽  
pp. 1-11
Author(s):  
M.K. Al-Sugheir ◽  
F.F. Mqbel
Keyword(s):  
Magnetic Field ◽  
Nucleon Nucleon ◽  
Neutron Matter ◽  
Effective Magnetic Field ◽  
Many Body ◽  
Nucleon Potential ◽  
Hartree Fock ◽  
Spin Polarized ◽  
Particle Pressure ◽  
Polarized Neutron

In this work, the static fluctuation approximation (SFA) is used to investigate the thermodynamic properties of spin-polarized neutron matter. The energy per particle, pressure, entropy per particle, specific heat capacity, and effective magnetic field are studied as functions of density, temperature, and polarization fraction. The Argonne v18 nucleon–nucleon potential is used here. It is found that the energy per particle, pressure, entropy per particle, and effective magnetic field increase as the density or temperature increases. Also, the energy per particle and pressure are linearly dependent on the quadratic spin polarization δ2. The system becomes more ordered as δ increases. Our calculations are found to be in good agreement with previously published results obtained with different many-body techniques, such as the lowest order constrained variational (LOCV) method, the Brueckner–Hartree–Fock (BHF) approach, and the Dirac–Brueckner–Hartree–Fock (DBHF) technique.

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