Abstract
Nuclear spin relaxation and the Knight shift for 71Ga, 69Ga, and 115In isotopes were studied by nuclear magnetic resonance (NMR) in liquid gallium–indium alloyconfined to porous glass and alloy surface film and were compared with the bulkcounterparts. Drastic spin relaxation acceleration under nanoconfinement was observed forthe three isotopes. Quadrupole and magnetic contributions to spin relaxation wereseparated for gallium and indium isotopes using the experimental data obtained, whichallowed, in particular, the evaluation of correlation times of atomic mobility. The strongdecrease in the correlation time was found for confined alloy which evidenced a remarkablediffusion slowdown. The effect of changes in atomic mobility on NMR line broadening wasalso discussed.
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