Crystal Growth and Substitutional Chemistry of Pb2Sr2MCu3O8
We report the crystal growth and ceramic preparation of Pb2Sr2MCu3O8 phases containing a variety of lanthanoids and lanthanoid/alkaline-earth metal solid solutions. These recently discovered high-temperature superconductors add to our understanding of the chemical and structural features key to superconductivity in cuprates. The growth of millimeter-sized crystals from PbO-rich fluxes is described. Ceramic samples of the Pb2Sr2MCu3O8 phase are formed under low oxygen partial pressures for the majority of the lanthanoids. Systematic structural changes are observed as a function of lanthanoid size. The substitution of alkaline-earth metals on the lanthanoid site and the substitution of barium for strontium to form Pb2Ba2YCu3O8 are also described.
MSU Digital Commons Citation
Schneemeyer, Lynn; Cava, Robert J.; James, A. C.W.P.; Marsh, P.; Siegrist, Theo; Waszczak, J. V.; Kraiewski, J. J.; Peck, W. P.; Opila, Robert L.; Glarum, Sivert H.; Marshall, J. H.; Hull, Robert; and Bonar, Janet M., "Crystal Growth and Substitutional Chemistry of Pb2Sr2MCu3O8" (1989). Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works. 514.