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Influence of the second-nearest-neighbor hopping integrals on the electronic properties of bcc systems with electrons
Phys. Rev. B 26, 1048 – Published 15 July, 1982
DOI: https://doi.org/10.1103/PhysRevB.26.1048
Abstract
We show that the second-nearest-neighbor hopping integrals have little influence on several electronic properties of bcc systems with transition metals. Indeed, the and partial integrated densities of states have opposite dependences upon these integrals, and the total integrated density of states is, therefore, rather insensitive to their value. The electronic properties which depend upon an integration over the energy (occupation numbers, magnetic susceptibilities, cohesive and ordering energies,...) are therefore also expected to be rather independent of the value of the second-nearest-neighbor hopping integrals.
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