"Crystal Growth and Substitutional Chemistry of Pb2Sr2MCu3O8" by Lynn Schneemeyer, Robert J. Cava et al.
 

Crystal Growth and Substitutional Chemistry of Pb2Sr2MCu3O8

Document Type

Article

Publication Date

9-1-1989

Journal / Book Title

Chemistry of Materials

Abstract

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.

DOI

10.1021/cm00005a016

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