Published August 1, 1990 | Version v1
Journal article

Magnetic interactions of Gd in GdBa2(Cu1-xNix)3Oy compounds

  • 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)

Description

Electron-spin resonance (ESR) and dc-susceptibility are measured for GdBa2Cu3Oy 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 GdBa2Cu3Oy compounds is discussed on the basis of the results obtained

Additional details

Publishing Information

Journal Title
Physical Review, B: Condensed Matter
Journal Volume
42
Journal Issue
4
Series
Phys. Rev., B: Condens. Matter.
Journal Page Range
2558-2561
ISSN
0163-1829
CODEN
PRBMD