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Effective fields at diamagnetic impurities in rare-earth metals

Journal Article · · Sov. Phys. - JETP (Engl. Transl.); (United States)
OSTI ID:7097203
The hyperfine fields at the nuclei of impurity /sup 119/Sn atoms in metallic Tb were measured in the regions of ferromagnetic and antiferromagnetic ordering in the temperature range 4.2--235 /sup 0/K. A strong deviation (up to 90%) of the plot of the temperature dependence of the hyperfine field from the plot of the spontaneous magnetization of the matrix is observed. A comparison with analogous measurements for the Dy matrix shows that the exchange constants can depend on the helicoid angle ..cap alpha... To explain the temperature anomaly, we consider, besides the previously discussed mechanisms, also a new mechanism connection with the rotation of the moments of the nearest environment of the impurity atom.
Research Organization:
Nuclear Physics Research Institute of the Moscow State University
OSTI ID:
7097203
Journal Information:
Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 45:6; ISSN SPHJA
Country of Publication:
United States
Language:
English