Antiferromagnetic behavior in Y--Ba--(Cu/sub 1/minus//ital x//Sc/sub /ital x/)--O

Journal Article · Mon May 01 04:00:00 EDT 1989 · J. Mat. Res.; (United States)

OSTI ID:5833642

Chakraborty, A; Chen, X D; Zuo, F; Patton, B R; Gaines, J R; Epstein, A J

We report the results on x-ray diffraction and magnetic susceptibility study of Y--Ba--(Cu/sub 1/minus//ital x//Sc/sub /ital x//)--O. The materials were prepared in a stoichiometry corresponding to Y/sub 1/Ba/sub 2/(Cu/sub 1/minus//ital x//Sc/sub /ital x/)3/O/sub 7/. Although x-ray analysis reveals the increasing presence of a subtle second phase with increasing Sc content, the superconducting transition temperature and resistivity did not change substantially in the composition range 0.0/le//ital x//le/0.15. In contrast, the magnetic susceptibility studies showed dramatic changes. Although Sc/sup 3+/ has no spin by itself, an enhanced paramagnetic Curie susceptibility was observed above /ital T//sub c/ with a moment of 1.5 /mu//sub B/ per Sc. At 16 K a sharp cusp is observed in the temperature dependent susceptibility corresponding to the onset of a three-dimensionally ordered antiferromagnetic state. These results are discussed in terms of an additional previously unreported phase of Y--Ba--(Cu-Sc)--O that has an antiferromagnetic Neel temperature of 16 K. For composition of /ital x/=1.0, a new phase is formed which is nonmagnetic.

• Research Organization: Department of Physics, The Ohio State University, Columbus, Ohio 432101106 (US); Department of Physics and Department of Chemistry, The Ohio State University, Columbus, Ohio 432101106
• OSTI ID: 5833642
• Journal Information: J. Mat. Res.; (United States), Journal Name: J. Mat. Res.; (United States) Vol. 4:3; ISSN JMREE
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANTIFERROMAGNETISM
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
DIFFRACTION
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCANDIUM COMPOUNDS
SCANDIUM OXIDES
SCATTERING
STOICHIOMETRY
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES