Magnetic behavior of the {open_quotes}112{close_quotes} type substituted cuprate YBaCoCu{sub 1-x}Fe{sub x}O{sub 5}

Journal Article · Wed Mar 01 04:00:00 EST 1995 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1006/jssc.1995.1167· OSTI ID:75776

Barbey, L; Nguyen, N; Ducouret, A; Caignaert, V; Raveau, B ^[1]; Greneche, J M ^[2]

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1. Universite de Caen (France)
2. Universite du Maine, Le Mans (France)

A new solid solution YBaCoCu{sub 1-x}Fe{sub x}O{sub 5+{delta}} has been synthesized for 0.30 {le} x {le} 0.60. The neutron diffraction study of the phase YBaCoCu{sub 1-x}Fe{sub x}O{sub 5} (x = 0.50) confirms that its nuclear structure is centric, i.e., belongs to the space group P4/mmm, which must be now considered as characteristic of the {open_quotes}112{close_quotes} structure, built up of double pyramidal layers of transition metal elements M(M = Fe, Co, Cu). The neutron diffraction spectra registered at 1.4 and 300 K show that the magnetic moments are antiferromagnetically coupled, lying in the (a,b) plane; the susceptibility measurements and Moessbauer spectroscopy data show for iron the only presence of Fe(III), a cationic disordering, and allow an intermediate spin configuration for Co(III) to be identified. For x = 0.5 the phase can then be formulated YBaCo{sub 0.5}{sup III}Co{sub 0.5}{sup II}Cu{sub 0.5}{sup II}Fe{sub 0.5}{sup III}O{sub 5}.

• OSTI ID: 75776
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 2 Vol. 115; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM COMPOUNDS
CHEMICAL PREPARATION
COBALT COMPOUNDS
CUPRATES
IRON COMPOUNDS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MOESSBAUER EFFECT
PHASE STUDIES
SOLID SOLUTIONS
STOICHIOMETRY
YTTRIUM COMPOUNDS