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Slichter, C.P. Durand, Dale James 2011-05-18T16:08:55Z 2011-05-18T16:08:55Z 10000-01-01 1989 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. Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-05-18T16:08:55Z No. of bitstreams: 1 1989_durand.pdf: 5784885 bytes, checksum: 8178ec74457d8932e5e9fa841bb953f3 (MD5) Made available in DSpace on 2011-05-18T16:08:55Z (GMT). No. of bitstreams: 1 1989_durand.pdf: 5784885 bytes, checksum: 8178ec74457d8932e5e9fa841bb953f3 (MD5) Previous issue date: 1989 Restriction data tranferred 2014-07-01T11:14:01-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-05-18T16:08:55Z Item is restricted indefinitely. Thesis U of I Only 1854055 http://hdl.handle.net/2142/23943 en 1989 Dale James Durand Nuclear magnetic resonance (NMR) quantum size effects supported platinum particles carbon monoxide monolayer nonmetallic spin-lattice relaxation Knight shift Nuclear magnetic resonance study of quantum size effects in supported platinum particles Dissertation / Thesis text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.