Magnetic interactions of Gd in GdBa sub 2 (Cu sub 1 minus x Ni sub x ) sub 3 O sub y compounds

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.42.2558· OSTI ID:6386925

Nakamura, F ^[1]; Ochiai, Y ^[2]; Shimizu, H ^[3]; Narahara, Y ^[1]

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1. Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305 (Japan)
2. Institute of Materials Science, University of Tsukuba, Tsukuba, Ibaraki (Japan)
3. Faculty of Science and Technology, Science University of Tokyo, Noda, Chiba 278 (Japan)

Electron-spin resonance (ESR) and dc-susceptibility are measured for GdBa{sub 2}Cu{sub 3}O{sub {ital y}} compounds. From the Curie-Weiss susceptibility and the frequency dependence of the linewidth, we determine Gd dipolar fields of about 3 kOe and exchange fields of about 9 kOe in this system. In order to make the origin of the exchange fields clear, ESR measurements are also performed for Ni-doped compounds. The Gd linewidths and the Neel temperature depend on the Ni concentrations. The origin of the exchange field in GdBa{sub 2}Cu{sub 3}O{sub {ital y}} compounds is discussed on the basis of the results obtained.

• OSTI ID: 6386925
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 42:4; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHARGED PARTICLES
COPPER
CURIE-WEISS LAW
ELECTRON SPIN RESONANCE
ELEMENTS
GADOLINIUM COMPOUNDS
GADOLINIUM IONS
GADOLINIUM OXIDES
IONS
LINE WIDTHS
MAGNETIC PROPERTIES
MAGNETIC RESONANCE
MAGNETIC SUSCEPTIBILITY
METALS
NICKEL COMPOUNDS
NICKEL OXIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
RESONANCE
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS