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Dr. Jay Shore, Associate Professor
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Phone: (605) 688-6356
Fax: (605) 688-6364
E mail Dr. Jay Shore
Education
• BS, 1986, Oregon State University
• Ph.D., 1992, University of Illinois at Urbana-Champaign
Postdoctoral Appointments
• University of California, Berkeley, 1992-1995
External Funding
• DOD, Alcoa Corporation
The goal of my research is to better understand inor-ganic solids at the atomic-level and to develop new methodologies of characterization while addressing materials related questions of relevance and techno-logical importance. I try to do research that is ele-gant and definitive, and addresses questions from a fundamental perspective. My research interests are related to two general areas:
• the development and implementation of techniques and ideas that increase the amount of atomic-level information obtainable with solid-state NMR spectroscopy
• the study of the atomic, magnetic and electronic structures of inorganic solids as related to motion and disorder.
Because of the potential of NMR spectroscopy to characterize the local-atomic structure of solids, much of my time is spent improving and adapting NMR techniques. For example, we have dramatical-ly improved the resolution of NMR nutation spectroscopy and have used advanced NMR techniques to determine the preferential site occupancy of aluminum in a couple of zeolites. NMR spectra are domi-nated by interactions that occur within small distances (10 Angstroms). Hence, NMR spectroscopy can be used to identify and potentially quantitatively measure the concentration of atomic species with different local environments and is well suited for the study of disorder. NMR spectroscopy can also be used to measure nuclear dipole dipole interactions to determine the distance between specific atomic species as well as measure motion (10 8 to 10 -1 sec -1 ) at the atomic-level.
Almost all materials of technological importance such as catalysts, semiconductors, and glasses have disorder on the atomic-level due to being non-stoichiometric or non crystalline. Such disorder is often intimately related to technologically relevant properties. The materials that I am primarily interested in include oxides that exhibit interesting electrical properties such as the piezoelectric Pb(Mg 1/3 Nb 2/3 )O 3 and related systems, and zeolites and clays where cation exchange and mobility are of importance. Recently, we have used solid state NMR to identify three types of distinct niobium sites in Pb(Mg 1/3 Nb 2/3 )O 3 , and are currently trying to relate this observation to the piezoeletric properties of this material.
Publications
Fitzgerald, J.J.; Huang, J.; Prasad, S.; Shore, J.S., 2000, Solid state 93 Nb NMR and 93 Nb nutation studies of Pb(Mg 1/3 Nb 2/3 )O 3 (PMN) and (1-x)Pb(Mg 1/3 Nb 2/3 )O 3 /xPbTiO 3 (PMN/PT) solid-solution relaxor ferroelectrics, J. Am. Chem. Soc. In Press
Zhao, P.; Prasad, S.; Huang, J.; Fitzgerald, J.J.; Shore, J.S., 1999, Lead-207 NMR spectroscopic study of lead-based electronic materials and related lead oxides. J. Phys. Chem., 103, 10617-10626.
Prasad, S.; Zhao, P.; Huang, J.; Fitzgerald, J.J.; Shore, J.S., 1999, Pure-phase two-dimensional niobi-um 93 nutation spectroscopic study of lead metaniobate and the piezoelectric lead magnesium niobate, Solid State Nucl. Magn. Reson., 14, 231-235.
Bull, L.M.; Cheetham, A.K.; Anupold, T.; Reinhold, A.; Samoson, A.; Sauer, J.; Bussemer, B.; Lee, Y.; Gann, S.; Shore, J.; Pines, A.; Dupree R., 1998, A high-resolution 17 O NMR study of siliceous zeolite faujasite. J. Am. Chem. Soc., 120, 3510-3511.
DePaul, S.; Ernst, M.; Shore, J.S.; Stebbins, J.; Pines, A., 1997, Cross polarization from quadrupolar nuclei to silicon using low radio frequency amplitudes during magic angle spinning. J. Phys. Chem., 101, 3240-3249. |
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