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Magnetic Properties of Superconducting GdBa2Cu3O6+δat Low Temperature and High Field

Published online by Cambridge University Press:  28 February 2011

C. Y. Huang
Affiliation:
Lockheed Missiles & Space Company, Inc., Research & Development Division, Palo Alto, CA 94304–1191
Y. Shapira
Affiliation:
Francis Bitter National Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139, and Department of Physics, Tufts University, Medford, MA 02155
P. H. Hor
Affiliation:
Department of Physics, University of Houston, Houston, TX 77004
R. L. Meng
Affiliation:
Department of Physics, University of Houston, Houston, TX 77004
C. W. Chu
Affiliation:
Department of Physics, University of Houston, Houston, TX 77004
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Abstract

The magnetization of antiferromagnetic superconducting GdBa2Cu3O6+δ has been measured for ∼1.5 < T ≤4.2 K for magnetic fields up to ∼20 T. We found that all Gd3+ spins are nearly parallel at very high fields, and that this saturated spin subsystem coexists with superconductivity. Below the Neel temperature, 2.22 K, we observed the transition from the “canted” phase to the paramagnetic phase by the application of a high magnetic field. The temperature dependence of this phase transition is also reported.

Type
Research Article
Copyright
Copyright © Materials Research Society 1988

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References

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