NMR measurements of nanophase silver
The room temperature nuclear magnetic resonance (NMR) spectrum of Ag109 in nanophase silver is presented. In contrast to previous measurements of Cu in nanophase copper, where evidence of a significant distribution of anisotropic Knight shifts is present, the Ag signal can be understood in terms of a distribution of isotropic Knight shift. The width and shape of the response can be interpreted using a simple model for the grain boundary resulting in spatial variations in the electron wavefunction within the material. © 1993.
NMR measurements of nanophase silver.
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