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A 207Pb NMR Study of Beta"-Alumina

Published online by Cambridge University Press:  28 February 2011

Bruce M. Sass ,
Bryan H. Suits  and
David White
Bruce M. Sass
Affiliation:
Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104–6323
Bryan H. Suits
Affiliation:
Department of Physics, Michigan Technological University, Houghton, MI 49931
David White
Affiliation:
Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104–6323
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Abstract

We report results of a nuclear magnetic resonance (NMR) study of lead(II) cations in β"-alumina. Measurements of line positions and spin-lattice relaxation times (T1) as a function of temperature are presented. The results show that Pb ions possess both static and dynamic disorder in low and intermediate temperature regimes, respectively. Also, a comparison is made between Lorentzian and logarithmic spectral density functions, from which we conclude that the latter provides a better fit to the dataat short correlation times (ωºτºα). The logarithmic form has been proposed to describe diffusive motion in 2-dimensional conductors.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 210: Symposium L – Solid State Ionics II , 1990 , 553
Copyright
Copyright © Materials Research Society 1991

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