[formula omitted]-NMR in thin metal films

We have measured the temperature dependence of the β-NMR resonances of 8 Li implanted in thin films of Au and Ag. At room temperature single narrow resonances are observed. The absence of appreciable quadrupolar splitting or broadening indicates that the Li is isolated and at a site of cubic symmetr...

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Published inPhysica. B, Condensed matter Vol. 326; no. 1; pp. 213 - 216
Main Authors MacFarlane, W.A., Morris, G.D., Beals, T.R., Chow, K.H., Baartman, R.A., Daviel, S., Dunsiger, S.R., Hatakeyama, A., Kreitzman, S.R., Levy, C.D.P., Miller, R.I., Nichol, K.M., Poutissou, R., Kiefl, R.F.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.02.2003
Subjects
Knight shift
Thin metallic films
β-NMR
β-NMR
75.70.Ak
Knight shift
68.55.Ln
76.60.Cq
Thin metallic films
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Summary:We have measured the temperature dependence of the β-NMR resonances of 8 Li implanted in thin films of Au and Ag. At room temperature single narrow resonances are observed. The absence of appreciable quadrupolar splitting or broadening indicates that the Li is isolated and at a site of cubic symmetry. As the temperature is lowered, a second resonance appears which is shifted higher in frequency by ∼100 ppm . We attribute the two lines to two distinct cubic sites with slightly different Knight shifts and discuss the application of this result to study fundamental phenomena exhibited by nano-confined metallic electrons.
ISSN:0921-4526
1873-2135
DOI:10.1016/S0921-4526(02)01604-6