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• W2074994877 startingPage "1687" @default.
• W2074994877 abstract "A recently developed density functional method, within Hohenberg-Kohn-Sham framework, is used for faithful description of atoms, molecules in Cartesian coordinate grid, by using an LCAO-MO ansatz. Classical Coulomb potential is obtained by means of a Fourier convolution technique. All two-body potentials (including exchange-correlation (XC)) are constructed directly on real grid, while their corresponding matrix elements are computed from numerical integration. Detailed systematic investigation is made for a representative set of atoms/molecules through a number of properties like total energies, component energies, ionization energies, orbital energies, etc. Two nonlocal XC functionals (FT97 and PBE) are considered for pseudopotential calculation of 35 species while preliminary all-electron results are reported for 6 atoms using the LDA XC density functional. Comparison with literature results, wherever possible, exhibits near-complete agreement. This offers a simple efficient route towards accurate reliable calculation of many-electron systems in the Cartesian grid. Future prospect of this method is also discussed." @default.
• W2074994877 created "2016-06-24" @default.
• W2074994877 creator A5028514592 @default.
• W2074994877 date "2011-06-08" @default.
• W2074994877 modified "2023-09-25" @default.
• W2074994877 title "Density functional calculation of many-electron systems in Cartesian coordinate grid" @default.
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• W2074994877 doi "https://doi.org/10.1007/s10910-011-9851-2" @default.
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