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Title:Nuclear magnetic resonance study of quantum size effects in supported platinum particles
Author(s):Durand, Dale James
Doctoral Committee Chair(s):Slichter, C.P.
Department / Program:Physics
Discipline:Physics
Degree:Ph.D.
Genre:Dissertation
Subject(s):Nuclear magnetic resonance (NMR)
quantum size effects
supported platinum particles
carbon monoxide monolayer
nonmetallic spin-lattice relaxation
Knight shift
Abstract:The author has observed, and studied quantum size effects in the NMR of small, supported platinum particles with a monolayer of carbon monoxide chemically adsorbed to the surface. The effects are observed in the 13c and 195pt NMR, primarily at 4.2K. He reports nonmetallic spin-lattice relaxation, and changes in the Knight shift at low temperatures. He shows that the variation of the quantum size effects at 4.2K with particle size is consistent with a prediction based on simply scaling the bulk density of states at the Fermi energy with the volume of the particles. An interpretation is proposed based on the relative sizes of the electron Zeeman energy and the level spacing of particular particles.
Issue Date:1989
Genre:Dissertation / Thesis
Type:Text
Language:English
URI:http://hdl.handle.net/2142/23943
Rights Information:1989 Dale James Durand
Date Available in IDEALS:2011-05-18
Identifier in Online Catalog:1854055


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