Dependence of superconducting properties on lattice strain in MgB2
作者： WX Li , Rong Zeng , Liang Lu , SX Dou , None
DOI: 10.1016/J.PHYSC.2009.11.053
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摘要: Abstract As a phonon-media superconductor, the superconducting properties of MgB 2 are very sensitive to lattice parameters. Lattice strain has significant effects on in superconductor. We have systematically studied relationship between and (such as critical temperature, T c , upper field, H irreversibility irr hence current density, J ) pure different chemical doped samples. In contrast common practice improving through substitution, by taking advantage residual thermal strains we able design composite, which shows only small drop little increase resistivity, but improvement over .
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