A new type of homologous series in the La-Cu-O system

R. J. Cava, T. Siegrist, B. Hessen, J. J. Krajewski, W. F. Peck, B. Batlogg, H. Takagi, J. V. Waszczak, L. F. Schneemeyer, H. W. Zandbergen

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

The synthesis and structural characterization of a new type of homologous series of lanthanum cuprates, with the general formula La4+4nCu8+8nO14+8n, is reported. The n=2 and n=3 members, La2Cu2O5 and La8Cu7O19, synthesized in bulk, are stable over very narrow temperature ranges in air and oxygen. Higher members (n > 3) have been observed by electron microscopy. The crystal structure of La2Cu2O5 consists of thin slabs of La2CuO4 sandwiched between CuO planes of complex low-dimensional geometry. The temperature dependent magnetic susceptibilities of La2Cu2O5 and La8Cu7O19 are characteristic of low-dimensional Heisenberg antiferromagnets with a remarkably low exchange coupling energy.

Original languageEnglish (US)
Pages (from-to)115-121
Number of pages7
JournalPhysica C: Superconductivity and its applications
Volume177
Issue number1-3
DOIs
StatePublished - Jun 15 1991

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'A new type of homologous series in the La-Cu-O system'. Together they form a unique fingerprint.

  • Cite this

    Cava, R. J., Siegrist, T., Hessen, B., Krajewski, J. J., Peck, W. F., Batlogg, B., Takagi, H., Waszczak, J. V., Schneemeyer, L. F., & Zandbergen, H. W. (1991). A new type of homologous series in the La-Cu-O system. Physica C: Superconductivity and its applications, 177(1-3), 115-121. https://doi.org/10.1016/0921-4534(91)90306-J