A New Homologous Series of Lanthanum Copper Oxides

Authors

Robert J. Cava, Princeton UniversityFollow
Theo Siegrist, Florida State UniversityFollow
Bart Hessen, University of Groningen
J. J. Krajewski, Los Alamos National Laboratory
W. F. Peck, LucentFollow
Bertram Batlogg, ETH ZurichFollow
Hidenori Takagi, University of StuttgartFollow
Joseph V. Waszczak, University of WashingtonFollow
Lynn Schneemeyer, Montclair State UniversityFollow
H. W. Zandbergen, Delft University of TechnologyFollow

Document Type

Article

Publication Date

1-1-1991

Abstract

We report the synthesis and structural characterization of a new homologous series of lanthanum cuprates, with the formula La4+4nCu8+2nO14+8n. The n = 2 and n = 3 members, La2Cu2O5 and La8Cu7O19, synthesized in the bulk, are stable in very narrow temperature ranges in air and oxygen. The n = 4 member was observed by electron microscopy. The crystal structure of La2Cu2O5 consists of thin ribbons 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 low exchange coupling energy.

DOI

10.1016/0022-4596(91)90230-F

Montclair State University Digital Commons Citation

Cava, Robert J.; Siegrist, Theo; Hessen, Bart; Krajewski, J. J.; Peck, W. F.; Batlogg, Bertram; Takagi, Hidenori; Waszczak, Joseph V.; Schneemeyer, Lynn; and Zandbergen, H. W., "A New Homologous Series of Lanthanum Copper Oxides" (1991). Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works. 525.
https://digitalcommons.montclair.edu/chem-biochem-facpubs/525