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• W2245065319 endingPage "331" @default.
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• W2245065319 abstract "Introduction Over the last few decades, there has been a significant increase in the use of computational simulation within the scientific community. Through a combination of the phenomenal boost in computational processing power and continuing algorithm development, atomistic scale modeling has become a valuable asset, providing a useful insight into the properties of atoms, molecules, and solids on a scale “often inaccessible” to traditional experimental investigation. Atomistic simulations can be divided into two main categories, quantum mechanical calculations and classical calculations based on empirical parameters. Quantum mechanical simulations (often referred to as ab initio or first-principles) aims at solving the many-body Schrodinger equation (Schrodinger, 1926). The original reformulation of the Schrodinger equation offered by the DFT provides valuable information on the electronic structure of the system studied. The very essence of DFT is to deal with noncorrelated single-particle wavefunctions. Many of the chemical and electronic properties of molecules and solids are determined by electrons interacting with each other and with the atomic nuclei. In DFT, the knowledge of the average electron density of the electrons at all points in space is enough to determine the total energy from which other properties of the system can also be deduced. DFT is based on the one-electron theory and shares many similarities with the Hartree–Fock method. DFT is presently the most successful and promising (also the most widely used) approach to computing the electronic structure of matter. In this appendix, the basics of DFT modeling techniques are explained." @default.
• W2245065319 created "2016-06-24" @default.
• W2245065319 creator A5008433484 @default.
• W2245065319 creator A5026938747 @default.
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• W2245065319 date "2014-02-12" @default.
• W2245065319 modified "2023-10-15" @default.
• W2245065319 title "Electronic structure calculations: the density functional theory (DFT)" @default.
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