Theoretical studies on the band structures of superconducting solid compounds: Nb3X (X=Si, Ge, Sn, P

来源 :Chinese Journal of Chemistry | 被引量 : 0次 | 上传用户:shadao
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The band structures of several analogous superconducting A-15 type solid compounds, Nb3X (X=Si, Ge, Sn, Pb), have been calculated by use of the tight-binding method within the Extended Huckel approximation (EHT). By analysis of their energy bands, densities of states and crystal orbital overlap populations, the dependence of the superconducting transition temperatures (Tc) on the electronic structures and bondings is qualitatively elucidated. The band structures of several analogous superconducting A-15 type solid compounds, Nb3X (X = Si, Ge, Sn, Pb) have been used by the tight-binding method within the Extended Huckel approximation (EHT) their energy bands, densities of states and crystal orbital overlap populations, the dependence of the superconducting transition temperatures (Tc) on the electronic structures and bondings is qualitatively elucidated.
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