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Nihat Arıkan

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Papers by Nihat Arıkan

Research paper thumbnail of Phonon and elastic properties of AlSc and MgSc from first-principles calculations

Computational Materials Science, 2010

First principle calculations of structural, electronic, elastic, and phonon properties of the int... more First principle calculations of structural, electronic, elastic, and phonon properties of the intermetallic compounds like MgSc and AlSc in the B2 (CsCl) structure are presented in this study, using the pseudo-potential plane waves approach based on the density functional theory, within the generalized gradient approximation. The calculated lattice constants, bulk modulus, and first-order pressure derivative of the bulk modulus are reported for the B2 structure and compared with the earlier experimental and theoretical calculations. The numerical first principles calculation of the elastic constants were used to calculate C 11 , C 12 and C 44 for these compounds. The present results concur with the earlier theoretical calculations. Electronic band structures and densities of states have been derived for MgSc and AlSc and subsequently, a linear-response approach to the density functional theory is used to derive the phonon frequencies and densities of states.

Research paper thumbnail of Electronic and phonon properties of Sc-TM (TM=Ag, Cu, Pd, Rh, Ru) compounds

Computational Materials Science, 2010

A theoretical study of structural, electronic and phonon properties of the Sc-TM (TM= Ag, Cu, Pd,... more A theoretical study of structural, electronic and phonon properties of the Sc-TM (TM= Ag, Cu, Pd, Rh, Ru) in the B2 phase was presented using the density functional theory within the generalized gradient approximation (GGA). The ground state quantities such as lattice ...

Research paper thumbnail of Phonon and elastic properties of AlSc and MgSc from first-principles calculations

Computational Materials Science, 2010

First principle calculations of structural, electronic, elastic, and phonon properties of the int... more First principle calculations of structural, electronic, elastic, and phonon properties of the intermetallic compounds like MgSc and AlSc in the B2 (CsCl) structure are presented in this study, using the pseudo-potential plane waves approach based on the density functional theory, within the generalized gradient approximation. The calculated lattice constants, bulk modulus, and first-order pressure derivative of the bulk modulus are reported for the B2 structure and compared with the earlier experimental and theoretical calculations. The numerical first principles calculation of the elastic constants were used to calculate C 11 , C 12 and C 44 for these compounds. The present results concur with the earlier theoretical calculations. Electronic band structures and densities of states have been derived for MgSc and AlSc and subsequently, a linear-response approach to the density functional theory is used to derive the phonon frequencies and densities of states.

Research paper thumbnail of Electronic and phonon properties of Sc-TM (TM=Ag, Cu, Pd, Rh, Ru) compounds

Computational Materials Science, 2010

A theoretical study of structural, electronic and phonon properties of the Sc-TM (TM= Ag, Cu, Pd,... more A theoretical study of structural, electronic and phonon properties of the Sc-TM (TM= Ag, Cu, Pd, Rh, Ru) in the B2 phase was presented using the density functional theory within the generalized gradient approximation (GGA). The ground state quantities such as lattice ...

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