Microstructure of Pb2Sr2ACu3O8 superconductors: New structures and superstructures

R. Hull, J. M. Bonar, L. F. Schneemeyer, R. J. Cava, J. J. Krajewski, J. V. Waszczak

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

We report a detailed study of the microstructure of the new class of high-Tc superconductors, Pb2Sr2ACu3O8, by transmission electron microscopy and diffraction. Several new structural and superstructural variants are observed for A=Eu+Sr, Dy+Ca/Sr or Dy+Sr. Approximately 50% of the individual crystals analyzed displayed weak violation of the c centering present in x-ray macroscopic structure determination, and superstructure variants with modulation vectors parallel to a and/or b were observed in 25% of Eu+Sr the crystals analyzed. In the A=Dy+Sr structures only, structure modulations were observed along [110] and [110] directions.

Original languageEnglish (US)
Pages (from-to)9685-9688
Number of pages4
JournalPhysical Review B
Volume39
Issue number13
DOIs
StatePublished - Jan 1 1989
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Microstructure of Pb2Sr2ACu3O8 superconductors: New structures and superstructures'. Together they form a unique fingerprint.

  • Cite this

    Hull, R., Bonar, J. M., Schneemeyer, L. F., Cava, R. J., Krajewski, J. J., & Waszczak, J. V. (1989). Microstructure of Pb2Sr2ACu3O8 superconductors: New structures and superstructures. Physical Review B, 39(13), 9685-9688. https://doi.org/10.1103/PhysRevB.39.9685