J. Woods Halley
Professor
350C Tate, 624-0395, email woods @ woods1.spa.umn.edu
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Bush Fellowship, 1983-84, IBM Paul J. Flory Sabbatical, 1987,Fellow of the Supercomputer Institute, University of Minnesota,1989-present,Graduate Faculty of Materials Science, University of Minnesota,1989- present, APS Fellow, 1998
Symposium on Global Climate Change and the Chemical Industry: Renewable technologies and new frontiers , American Institute of Chemical Engineers New Orleans, 2002, session organizer and chair; Basic Energy Sciences adviser Committee Workshop on Future of Energy Research, Department of Energy, Gaithersburg, MD, 2003; Workshop on Hydrogen Economy, Department of Energy, Rockville, MD, 2003; Workshop on Yucca Mountain Nuclear Waste Depository, Department of Energy, Bethesda, MD, 2003; NSF MRSEC Review Panel, Northwestern University 2003.
Research Areas: Condensed matter and chemical physics theory, simulation and experiment with an emphasis on interfaces.
Current Research
Professor Halley's group studies various phenomena at interfaces between materials and their phases. Experimental, theoretical and simulation studies are carried out. Specifically there are three main emphases within this broad area:
1) Theoretical and simulation studies of electrode-electrode interfaces, including the dynamics of molecules during the electron transfer to or from electrodes, and the study of the electronic structure of oxides and metals at the electrode-electrolyte interface using self-consistent tight binding molecular dynamics as well as ab initio place wave techniques. Recently these studies have been extended to nanophase systems.
2)Solvation, transport and ion pairing in numerical molecular dynamics methods. These include polymeric systems of relevance to batteries and fuel cells.
3) Theory, simulation and experimental studies of the interaction of helium four vapor with liquid superfluid helium four are employed to elucidate the nature of superfluidity, Bose Einstein condensation and low temperature gas dynamics.
The group collaborates extensively with scientists at Argonne National Laboratory, Pacific Northwest National Laboratory and 3M corporation in various of these projects. The group develops its own innovative simulation methods and codes for these studies.
Selected Publications
Chien-Yu Tsau, Diu Nghiem, R. Joynt and J. Woods Halley, J, “Energy Level Statistics of Quantum Dots, Phys.: Condens. Matter (2007)
J. Woods Halley, Serkan Erdin, You Lin, Peter Zapol,, “Self Consistent Tight Binding Molecular Dynamics Study of TiO$_2$ Nanoclusters in Water,”, Journal of Electroanalytical Chemistry (2007)
A.Wynveen, K.A.Lidke, Y.Lutsyshyn and J.W.Halley, “Possible Transmission Experiments with Low Velocity Helium Droplets,”, Phys.Rev (2007)
A. S. Barnard, S. Erdin, Y. Lin, P. Zapol and J. W. Halley, “Modeling of TiO$_2$ Nanoparticles,”, Phys. Rev (2006)
Serkan Erdin, You Lin and J. Woods Halley, “Self-consistent tight-binding study of low-index titanium surfaces, Phys. Rev (2005)
Yuhua Duan, J. W. Halley,Larry Curtiss, Paul Redfern, Mechanisms of Lithium Transport in Amorphous Polytethylene Oxide, Journal of Chemical Physics 122, 054702 (2005)
A. Wynveen, K.A. Lidke, M.C. Williams, C.F. Giese, J.W. Halley, Dynamics of low energy helium vapor pulses, Phys. Rev.E 67, 026311 (2003)
Min Zhuang and J. W. Halley, Self Consistent Tight Binding Method for the Prediction of Magnetic Spin Structures in Solids: Application to MnF$_2$ and MnO$_2$", Physical Review B 64, 024413 (2001)
A. Wynveen, A. Setty , A. Howard, J. W. Halley and C. E. Campbell, Identical particle scattering from a weakly coupled Bose-Einstein condensed gas", Physical Review A62, 023602 (2000)
Education
B.S., MIT, 1961.