Indirect nuclear spin relaxation in ferromagnetic heavy rare earth metals
- 1 June 1968
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 1 (3) , 748-758
- https://doi.org/10.1088/0022-3719/1/3/324
Abstract
An investigation is presented of the low-temperature relaxation of nuclear spins in ferromagnetic heavy rare earth metals by the Suhl-Nakamura mechanism of virtual magnon exchange. Numerical estimates of the r.m.s. homogeneous linewidth and Bloch decay time T2 are made in 159Tb, 161Dy, 163Dy, using the 90 °K Tb dispersion data of Møller and Houmann. We find T2 values of approximately 2½, 25, 12 μs respectively. Sample inhomogeneous fields increase T2 slightly and thus these values are in reasonable agreement with the measurements of Kobayashi, Sano and Itoh, who find values about twice as large.Keywords
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