Superconductivity and magnetic order in the Cu(2) planes in Fe-doped YBa sub 2 Cu sub 4 O sub 8

Journal Article · Mon Apr 01 04:00:00 EST 1991 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.43.8737· OSTI ID:5591778

Felner, I; Nowik, I; Brosh, B; Hechel, D; Bauminger, E R ^[1]

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1. Racah Institute of Physics, The Hebrew University, Jerusalem 91904, Israel (IL)

Moessbauer spectroscopy, magnetic susceptibility, and powder x-ray diffraction measurements were used to study superconductivity and magnetic order in YBa{sub 2}(CU{sub 1{minus}{ital x}}Fe{sub {ital x}}){sub 4}O{sub 8+{delta}}. $T sub c--- is reduced with increasing Fe concentration and superconductivity is totally depressed for {ital x}{gt}0.04. The Moessbauer spectra show that at concentrations where superconductivity disappears magnetic order, probably antiferromagnetism, is formed in the Cu(2) site. The phase diagram obtained is similar to those previously obtained for Y{sub 1{minus}{ital x}}Pr{sub {ital x}}Ba{sub 2}(Cu{sub 1{minus}{ital y}}Fe{sub {ital y}}){sub 3}O{sub 7+{delta}}. (P.R.L., 65, 1945 (1990)). In the superconducting region Fe atoms occupy only the Cu(1) sites and the {sup 57}Fe Moessbauer spectrum contains only one doublet.

• OSTI ID: 5591778
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 43:10; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ANTIFERROMAGNETISM
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DIAGRAMS
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EVEN-ODD NUCLEI
HIGH-TC SUPERCONDUCTORS
INTERMEDIATE MASS NUCLEI
IRON 57
IRON ADDITIONS
IRON ALLOYS
IRON ISOTOPES
ISOTOPES
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MOESSBAUER EFFECT
NUCLEI
OXIDES
OXYGEN COMPOUNDS
PHASE DIAGRAMS
PHYSICAL PROPERTIES
SCATTERING
STABLE ISOTOPES
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES