Superconductivity,magnetism and metastability of new ternary iridium borides |
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| Authors: | H.C. Ku B.T. Matthias H. Barz |
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| Affiliation: | 1. Institute for Pure and Applied Physical Sciences University of California, San Diego, La Jolla, California 92093, USA;2. Bell Laboratories, Murray Hill, New Jersey 07974, USA |
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| Abstract: | Superconductivity has been found in the rare earth iridium borides with the general formula MIr4B4 and in the pseudoternary (YxLu1?x)?Ir4B4 system, M being a rare earth element. The pure phase in itself is only metastable at best. The compounds were found to crystallize with the primitive tetragonal CeCo4B4-type structure. The close correlation between superconductivity, magnetism and structural metastability is demonstrated with the study of the pseudoternary systems M(IrxRh1?x)4B4 (x = 0.1 and 0.5) and Er(IrxRh1?x)4B4. |
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