Paramagnetic relaxation of Er in an Er single crystal |
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Authors: | M. H. Rafailovich E. Dafni O. C. Kistner A. W. Sunyar |
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Affiliation: | (1) Weizmann Institute of Science, Rehovot, Israel;(2) Brookhaven National Laboratory, Upton, New York, USA |
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Abstract: | The paramagnetic relaxation of Er in an Er single crystal was measured atT≫T N and compared to the relaxation of Er ions in a polycrystalline Pb host. The results indicate an enhancement of at most 50% of the f-conduction electron exchange interaction in Er, as expected for highly ionic f-orbitals. The ratio of the quadrupole moments of the154 Er(I π=11−) and the155 Er(I π=13/2+) isomers was measured to be 1.18(3) indicating onset of nuclear deformation at N=87. Deceased May, 1986 |
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