Abstract

The magnetic part of the nuclear spin relaxation rate, RM, has been measured at constant T in liquid Tl1-cPbc, Tl1-cBic and Tl1-cAuc (c<0.6), for the Bi nuclear spin. The 182 mu s isomer 207mBi, produced and aligned by the Tl ( alpha , 2n) reaction, and the TDPAD technique were used. Together with data from the literature, RM is established for Tl-Pb and Tl-Bi over the whole concentration range. For each alloy, the temperature dependence was measured at one intermediate concentration (c=0.5 or 0.4). The results agree with the free-electron model, revealing that structural and impurity effects on RM are small.

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