Effect of lattice strain and defects on the superconductivity of MgB2

Details Effect of lattice strain and defects on the superconductivity of MgB2 Effect of lattice strain and defects on the superconductivity of MgB2

2001-10-29

arxiv.org/abs/cond-mat/0110598v1

Appl. Phys. Lett. 79 (2001) 4399

Physics

Condensed Matter

Materials Science

3 figures, HTML+GIF format to be published in APL

Scientific paper

10.1063/1.1428109

The influence of lattice strain and Mg vacancies on the superconducting properties of MgB2 samples has been investigated. High quality samples with sharp superconducting transitions were synthesized. The variation in lattice strain and Mg vacancy concentrations were obtained by varying the synthesis conditions. It was found that high strain (~1%) and the presence of Mg vacancies (~ 5 %) resulted in lowering the Tc by only 2 K.

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