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Spin-glass ordering and superconductivity in amorphous La/sub 80/Au/sub 20/ alloys doped with Gd

Technical Report ·
DOI:https://doi.org/10.2172/7311474· OSTI ID:7311474
Magnetization and resistivity measurements are performed on amorphous La/sub 80/Au/sub 20/ alloys doped with Gd impurities. The anomalous behavior observed in the dependence of the superconducting transition temperature on Gd concentration is related to the onset of spin-spin correlations among the Gd impurities. We have identified the coexistence of superconductivity and magnetic ordering as a spin glass.
Research Organization:
California Inst. of Tech., Pasadena (USA). W.M. Keck Lab. of Engineering Materials
OSTI ID:
7311474
Report Number(s):
CALT-822-92
Country of Publication:
United States
Language:
English