Effect of Li doping on structure and superconducting transition temperature of Mg1-xLixB2
Zhao, Y. G. · Zhang, X. P. · Qiao, P. T. · Zhang, H. T. · Jia, S. L. · Zhu, B. S. Cao M. H. · Han, Z. H. · Wang, X. L. · Gu, B. L.
Original · EN
We report the preparation of Mg1-xLixB2 compounds. Nearly single phased samples were obtained for x<0.3. The in-plane lattice parameter a decreases with Li doping, while the lattice parameter c does not show obvious change. The superconducting transition temperature of Mg1-xLixB2 decreases with Li doping and loss of superconductivity occurs for x=0.5 sample. The results of our work are consistent with the prediction of the hole superconductivity mechanism.
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