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- W3043163686 abstract "We study the behavior of total-energy supercell calculations for dipolar molecules and charged clusters. Using a cutoff Coulomb interaction within the framework of a plane-wave basis set formalism, with all other aspects of the method (pseudopotentials, basis set, exchange-correlation functional) unchanged, we are able to assess directly the interaction effects present in the supercell technique. We find that the supercell method gives structures and energies in almost total agreement with the results of calculations for finite systems, even for molecules with large dipole moments. We also show that the performance of finite-grid calculations can be improved by allowing a degree of aliasing in the Hartree energy, and by using a reciprocal space definition of the cutoff Coulomb interaction." @default.
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- W3043163686 date "1998-03-01" @default.
- W3043163686 modified "2023-10-18" @default.
- W3043163686 title "Supercell technique for total-energy calculations of finite charged and polar systems" @default.
- W3043163686 hasPublicationYear "1998" @default.
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