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  1. 1 Acta Physica Polonica A

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  1. 1 2012

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  1. 1 Goraus J.

  2. 1 Maślankiewicz P.

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Lanthanide Contraction in RENi_5 (RE~=~La, Ce, Nd, Sm, Eu, Gd, Tb,~Yb) Compounds Studied with Band Structure Calculations

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Goraus J., Maślankiewicz P.
Acta Physica Polonica A
|
2012
|
vol. 121
|
issue 5-6
1076-1078
EN
Full potential linearized augmented plane wave band structure calculations were performed for hexagonal RENi_5 (RE = rare earth) compounds in order to investigate reproducibility of lanthanide contraction by ab initio studies. The a and c parameters were optimised using a paraboloid fit, starting from the same initial values for all compounds studied. The trend in lattice parameters across the RE series obtained from the calculations was found to be in general agreement with experimental data. A comparison of results obtained by generalized gradient approximation and generalized gradient approximation with additional Coulomb correlations calculations is presented for several double counting schemes.
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