Effect of Ni and Zn substitution on magnetic properties of the high- Tc superconductor GdBa sub 2 Cu sub 3 O sub 7 minus y

Journal Article · Wed Aug 01 00:00:00 EDT 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.42.2554· OSTI ID:6483108

Lin, C; Liu, Z; Lan, J ^[1]

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1. Department of Physics, Peking University, Beijing (People's Republic of China)

Magnetic properties of GdBa{sub 2}(Cu{sub 1{minus}{ital x}M{ital x}}){sub 3}O{sub 7{minus}{ital y}} were studied with {ital M}=Ni, Zn and {ital x}=0, 0.025, 0.050, 0.075, and 0.100. All samples are single phase with orthorhombic oxygen-deficient perovskite structure. Substitution of Cu by Ni or Zn not only depresses superconductivity but also reduces the antiferromagnetic ordering temperature {ital T}{sub {ital N}} of Gd ions, suggesting an interaction between Gd ions and the Cu-O plane. The effect of Ni on {ital T}{sub {ital N}} is the same as that of Zn. For {ital x}=0.10, both Ni- and Zn-substituted compounds are nonsuperconducting. A deviation from Curie-Weiss behavior is observed at about 8 K for these nonsuperconducting compounds. A possible explanation is discussed.

• OSTI ID: 6483108
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 42:4; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ANTIFERROMAGNETISM
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
HIGH-TC SUPERCONDUCTORS
MAGNETIC PROPERTIES
MAGNETISM
NICKEL ADDITIONS
NICKEL ALLOYS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ZINC ADDITIONS
ZINC ALLOYS