Effect of Paramagnetic Impurities on Nuclear Spin-Lattice Relaxation: A Numerical Study
- 1 December 1973
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 8 (11), 5226-5231
- https://doi.org/10.1103/physrevb.8.5226
Abstract
The effect of paramagnetic impurities on the nuclear spin-lattice relaxation time in metals is investigated by applying the theory of Blume and Hubbard in an appropriately generalized form. The calculations are carried out at finite temperature and magnetic field strength assuming that the Ruderman-Kittel-Kasuya-Yosida interaction couples the impurity spins. The effect of approximating this interaction by is examined as is the temperature, magnetic field, and impurity-concentration dependence of the relaxation time. Quantitative results are obtained using parameters appropriate to the rare-earth alloy and a comparison is made with experiment; agreement is generally good.
Keywords
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