COBDEN GROUP Department of Physics University of Washington Seattle, WA 98195-1560 Lab: Phys/Astr B308 Tel: (206) 543 0435 Fax: (206) 616 2774 Home Research Publications People Facilities Funding Links

Research: Correlated nanostructures In 1D, correlation effects are always strong, even for materials where Fermi liquid theory works well in the 3D counterpart (think of nanotubes vs graphite).  Many materials are strongly correlated even in 3D and show non-Fermi-liquid ground states.  What happens to these correlated states when confined to lower dimensions?  We are working with nanowires of vanadium oxides, in which correlations leads to dramatic metal-insulator phase transitions (MITs) as a function of temperature, stress or doping.  Using nanobeams of vanadium dioxide we have been able to study the MIT phase boundary in this material for the first time.