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Electronic structure and ground state parameters of Ru1 − x Me x Al refractory alloys

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Abstract

The electronic structure and ground state parameters of B2 RuAl-based refractory alloys have been investigated in the framework of the density functional theory using the exact muffin-tin orbital method in combination with the coherent potential approximation. It has been demonstrated that the number of states at the Fermi level for the Ru1 − x Me x Al alloys as a function of the alloying metal content has a minimum, which indicates a change in the Fermi surface topology and the presence of specific features in the behavior of elastic constants. It has been concluded that the electronic structure of the alloys can be described in terms of the rigid band model. The nonlinear variations of the lattice parameters of the alloys has been explained.

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Authors and Affiliations

  1. National University of Science and Technology “MISiS,”, Leninskiĭ pr. 4, Moscow, 119049, Russia

    I. D. Bleskov, É. I. Isaev & Yu. Kh. Vekilov

  2. Linköping University, Linköping, SE-581 83, Sweden

    É. I. Isaev

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  1. I. D. Bleskov
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  2. É. I. Isaev
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  3. Yu. Kh. Vekilov
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Correspondence to I. D. Bleskov.

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Original Russian Text © I.D. Bleskov, É.I. Isaev, Yu.Kh. Vekilov, 2010, published in Fizika Tverdogo Tela, 2010, Vol. 52, No. 9, pp. 1681–1687.

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Bleskov, I.D., Isaev, É.I. & Vekilov, Y.K. Electronic structure and ground state parameters of Ru1 − x Me x Al refractory alloys. Phys. Solid State 52, 1803–1809 (2010). https://doi.org/10.1134/S1063783410090039

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