Further studies of nuclear ordering in metallic copper

The nuclear spin system of polycrystalline Cu wires was studied down to 50 nK using two nuclear demagnetization refrigerators in cascade and showed no definite indication of a transition to an ordered state. However, the static susceptibility parallel to the wires was 30% smaller than the perpendicu...

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Bibliographic Details
Published in:Journal of low temperature physics 1983-03, Vol.50 (5-6), p.523-543
Main Authors: HUIKU, M. T, SOINI, J. K
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Magnetic properties and materials
Magnetically ordered materials: other intrinsic properties
Materials science
Metals, semimetals and alloys
Other topics in magnetic properties and materials
Physics
Saturation moments and magnetic susceptibilities
Specific materials
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Summary:The nuclear spin system of polycrystalline Cu wires was studied down to 50 nK using two nuclear demagnetization refrigerators in cascade and showed no definite indication of a transition to an ordered state. However, the static susceptibility parallel to the wires was 30% smaller than the perpendicular susceptibility at zero field at the lowest temp. Careful measurements of the field dependence of the static susceptibility in the parallel direction showed no saturation at the lowest temp. in small fields, in contrast to previous observation in the perpendicular direction. The Cu sample, which had no preferred orientation of crystals, thus had an orientation-dependent static susceptibility at the lowest temp. 18 ref.--AA
ISSN:0022-2291
1573-7357
DOI:10.1007/BF00683494