Superconducting NbRuB derived through the fragment formalism

Weiwei Xie; Huixia Luo; K. Baroudi; J. W. Krizan; B. F. Phelan; R. J. Cava

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arXiv · 1502.06981

Superconducting NbRuB derived through the fragment formalism

Weiwei Xie·Huixia Luo·K. Baroudi·J. W. Krizan·B. F. Phelan·R. J. Cava

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Abstract

We employ the chemical fragment formalism to perform a targeted superconductor search in the Nb-Ru-B system, yielding the orthorhombic metal-rich boride NbRuB, which displays BCS-like superconductivity with a Tc = 3.1 K. NbRuB is derived from the chemical fragments Nb3B2 + Ru3B, in which the Nb3B2 fragment contains B-B dimers and the Ru3B fragment contains isolated B atoms. A charge transfer occurs between the fragments. The results indicate that the fragment formalism is a useful chemical tool for the design of new intermetallic superconductors much the same way as the charge reservoir concept has been a useful chemical tool for the design of new copper oxide superconductors.

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Weiwei Xie, Huixia Luo, K. Baroudi, J. W. Krizan, B. F. Phelan, R. J. Cava. 2015-02-24. Superconducting NbRuB derived through the fragment formalism. https://arxiv.org/abs/1502.06981

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