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]

---

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), Vol. 42:4; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

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