Paramagnetic susceptibility of YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ at high temperatures

Journal Article · Sat Dec 31 23:00:00 EST 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.39.858· OSTI ID:6757261

Westerholt, K; Bach, H

The magnetic susceptibility of YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ for different oxygen concentrations is measured up to temperatures of 1000 K. In the semiconducting concentration range delta>0.5, the susceptibility exhibits the typical behavior of a two-dimensional Heisenberg antiferromagnet. For the exchange interactions Cu(2)-Cu(2) and Cu(1)-Cu(1) we estimate J = 1000 and 3000 K, respectively. The concentration dependence of the paramagnetic susceptibility at the semiconductor-superconductor phase boundary provides indications for the existence of antiferromagnetic fluctuations in the superconductors.

• Research Organization: Institut fuer Experimentalphysik IV, Ruhr-Universitaet, D-4630 Bochum, West Germany
• OSTI ID: 6757261
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 39:1; 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
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL MODELS
HEISENBERG MODEL
HIGH TEMPERATURE
LOW TEMPERATURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MATERIALS
MATHEMATICAL MODELS
MEDIUM TEMPERATURE
OXIDES
OXYGEN COMPOUNDS
PARAMAGNETISM
PHYSICAL PROPERTIES
QUANTITY RATIO
SEMICONDUCTOR MATERIALS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES