Abstract
Novel BiS2-based superconductors LaO1-xF xBiS2 prepared by a high-pressure synthesis technique were systematically studied. It was found that the high-pressure annealing strongly shrank the lattice as compared to the LaO1-xFxBiS 2 samples prepared by conventional solid-state reaction at ambient pressure. Bulk superconductivity was observed within a wide F concentration range of x = 0.2-0.7. On the basis of those results, we have established a phase diagram of LaO1-xFxBiS2.
Original language | English |
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Article number | 17004 |
Journal | EPL |
Volume | 101 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2013 |
Externally published | Yes |