Effects of transition metal doping in MgB$_2$ superconductor

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dc.creatorMoritomo, Y.
dc.creatorXu, Sh.
dc.date2001-04-30
dc.date.accessioned2026-07-07T02:41:15Z
dc.date.available2026-07-07T02:41:15Z
dc.descriptionEffects of chemical substitution of the divalent transition metals has been systematically investigated in Mg$_{1-x}M_x$B$_2$ (x=0.03; M=Mn, Fe, Co, Ni and Zn). Substitution of magnetic ions, i.e., Mn$^{2+}$, Fe$^{2+}$, Co$^{2+}$ and Ni$^{2+}$, for the Mg$^{2+}$ ion suppresses $T_{\rm c}$: d$T_{\rm c}$/d$x$ is the largest (= - 159 K) in the Mn-doped sample. We have found Zn-substitution increases $T_{\rm c}$ ($ΔT_{\rm c} \approx$ 0.2 K at x=0.03), perhaps due to the enhanced density of state near the Fermi level.
dc.description4 figure
dc.identifierhttps://arxiv.org/abs/cond-mat/0104568
dc.identifierhttp://arxiv.org/abs/cond-mat/0104568
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/17668
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.titleEffects of transition metal doping in MgB$_2$ superconductor
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