Electronic and magnetic properties of the new 120 K Tl‐Ca‐Ba‐Cu‐O superconductor are presented. Resistance‐temperature variations, ac susceptibility, and the (low) magnetic field dependence of the critical current density are reported. The new superconductor can be prepared in a molten state, which should allow processing leading to high critical current density. Preliminary x‐ray diffraction data are also presented.
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© 1988 American Institute of Physics.
1988
American Institute of Physics
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