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Superconductivity and Aluminum Ordering in Mg1-xAlxB2

J. Q. Li·L. Li·F. M. Liu·C. Dong·J. Y. Xiang·Z. X. Zhao
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Abstract

Superconductivity and structural properties of Mg1-xAlxB2 materials have been systematically investigated. Evident modifications in both superconductivity and microstructure are identified to originate from the Al ordering along the c-axis direction. The resultant superstructure phase has an optimal composition of MgAlB4 with the superconducting transition at around 12K. Brief diagrams illustrating the superconductivity and structural features of Mg1-xAlxB2 materials along with the increase of Al concentration are presented.

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J. Q. Li, L. Li, F. M. Liu, C. Dong, J. Y. Xiang, Z. X. Zhao. 2001-04-18. Superconductivity and Aluminum Ordering in Mg1-xAlxB2. https://arxiv.org/abs/cond-mat/0104320

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