Abstract
A study is reported of the Knight shift of 71Ga, 69Ga, and 115In NMR lines in a liquid gallium-indium alloy with a composition of 90 at % Ga and 10 at % In, introduced into porous glasses with pore sizes of 5 and 200 nm, relative to the corresponding shifts in the bulk alloy. The measurements have been performed at room temperature. The study has revealed a size-dependent decrease in the Knight shift. A sample with a 5-nm pore size has demonstrated a noticeable difference in the magnitudes of the Knight shift of both gallium isotopes measured in magnetic fields of 9.4 and 17.6 T, which implies a dependence of the electronic susceptibility of the melt on the magnetic field under the nanoconfinement conditions.
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Original Russian Text © D.Yu. Podorozhkin, E.V. Charnaya, D. Michel, J. Haase, C. Tien, M.K. Lee, L.J. Chang, Yu.A. Kumzerov, 2012, published in Fizika Tverdogo Tela, 2012, Vol. 54, No. 5, pp. 1035–1038.
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Podorozhkin, D.Y., Charnaya, E.V., Michel, D. et al. Influence of size effects on the Knight shift of NMR lines in the gallium-indium alloy. Phys. Solid State 54, 1104–1107 (2012). https://doi.org/10.1134/S1063783412050344
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DOI: https://doi.org/10.1134/S1063783412050344