Synthesis and properties of new cuprates (Cd0.5M0.5)Sr2YCu2O7 with the “1212” structure (M = Fe, Co)

W. J. Yu, Z. Q. Mao, C. Y. Xu, M. L. Tian, L. Shi, G. E. Zhou, Y. H. Zhang

Research output: Contribution to journalArticle

Abstract

New cuprates of composition (Cd0.5M0.5)Sr2YCu2O7 (M = Fe, Co) with the “1212” structure are synthesized. X‐ray diffraction patterns show that both cuprates exhibit a tetragonal 1212‐phase structure. The lattice parameters of (Cd0.5Fe0.5)Sr2YCu2O7 are a = 3.809 Å and c = 11.423 Å; those of (Cd0.5Co0.5)Sr2YCu2O7 are a = 3.816 Å and c = 11.435 Å. The results of electron diffraction for the samples show that there is a 90° twinning of the c‐axis. The Raman spectra depict an apical‐O(2) vibration mode appearing at 544 cm−1 for (Cd0.5Fe0.5)Sr2YCu2O7 and 535 cm−1 for (Cd0.5Co0.5)Sr2YCu2O7. The samples act as semiconductors in the temperature range 12 to 300 K.

Original languageEnglish (US)
Pages (from-to)355-359
Number of pages5
Journalphysica status solidi (a)
Volume152
Issue number2
DOIs
StatePublished - Dec 16 1995

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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