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Title: Structural and electronic properties of the mixed Co/Ru perovskites AA{prime}CoRuO{sub 6} (A, A{prime} = Sr, Ba, La)

Abstract

The compounds Sr{sub 2}CoRuO{sub 6}, SrLaCoRuO{sub 6}, Ba{sub 2}CoRuO{sub 6}, and BaLaCoRuO{sub 6} have been prepared and characterized by X ray powder diffraction and SQUID magnetometry. All but Ba{sub 2}CoRuO{sub 6} crystallize as pseudo-cubic perovskites with a disordered arrangement of Co and Ru cations over the six-coordinate sites. Ba{sub 2}CoRuO{sub 6} adopts the hexagonal 6H perovskite structure with Co in the vertex-sharing octahedra and a random arrangement of Co and Ru in the M{sub 2}O{sub 9} dimers. Frustration is apparent in the magnetic properties of each of these compounds at low temperatures, in contrast to the 6H perovskite Ba{sub 3}CoRu{sub 2}O{sub 9}, which shows no structural disorder and orders antiferromagnetically at 106 K.

Authors:
;  [1]
  1. Inorganic Chemistry Laboratory, Oxford (United Kingdom)
Publication Date:
OSTI Identifier:
552734
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 114; Journal Issue: 1; Other Information: PBD: Jan 1995
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; RUTHENIUM OXIDES; ELECTRIC CONDUCTIVITY; CRYSTAL STRUCTURE; COBALT OXIDES; LANTHANUM OXIDES; BARIUM OXIDES; STRONTIUM OXIDES; PEROVSKITES; BOND LENGTHS; BOND ANGLE; MAGNETIC PROPERTIES

Citation Formats

Kim, S.H., and Battle, P.D. Structural and electronic properties of the mixed Co/Ru perovskites AA{prime}CoRuO{sub 6} (A, A{prime} = Sr, Ba, La). United States: N. p., 1995. Web. doi:10.1006/jssc.1995.1025.
Kim, S.H., & Battle, P.D. Structural and electronic properties of the mixed Co/Ru perovskites AA{prime}CoRuO{sub 6} (A, A{prime} = Sr, Ba, La). United States. doi:10.1006/jssc.1995.1025.
Kim, S.H., and Battle, P.D. Sun . "Structural and electronic properties of the mixed Co/Ru perovskites AA{prime}CoRuO{sub 6} (A, A{prime} = Sr, Ba, La)". United States. doi:10.1006/jssc.1995.1025.
@article{osti_552734,
title = {Structural and electronic properties of the mixed Co/Ru perovskites AA{prime}CoRuO{sub 6} (A, A{prime} = Sr, Ba, La)},
author = {Kim, S.H. and Battle, P.D.},
abstractNote = {The compounds Sr{sub 2}CoRuO{sub 6}, SrLaCoRuO{sub 6}, Ba{sub 2}CoRuO{sub 6}, and BaLaCoRuO{sub 6} have been prepared and characterized by X ray powder diffraction and SQUID magnetometry. All but Ba{sub 2}CoRuO{sub 6} crystallize as pseudo-cubic perovskites with a disordered arrangement of Co and Ru cations over the six-coordinate sites. Ba{sub 2}CoRuO{sub 6} adopts the hexagonal 6H perovskite structure with Co in the vertex-sharing octahedra and a random arrangement of Co and Ru in the M{sub 2}O{sub 9} dimers. Frustration is apparent in the magnetic properties of each of these compounds at low temperatures, in contrast to the 6H perovskite Ba{sub 3}CoRu{sub 2}O{sub 9}, which shows no structural disorder and orders antiferromagnetically at 106 K.},
doi = {10.1006/jssc.1995.1025},
journal = {Journal of Solid State Chemistry},
number = 1,
volume = 114,
place = {United States},
year = {1995},
month = {1}
}