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: Quantum transport in 1D and 2D The availability of 2D electron gases confined at semiconductor interfaces since about 1980, and single-walled carbon nanotubes since 1996, have made a host of interesting studies of 2D and 1D physics feasible.  We have worked on many aspects of these systems at low temperatures.  Lately we have measured nonlinear transport coefficients in magnetic fields as probes of electron-electron interaction strength in nanotubes (paper).  Also, in collaboration with Mark Buitelaar and Valery Talyanskii at the University of Cambridge we have been measuring charge pumping in a nanotube by surface acoustic waves excited in the piezoelectric substrate beneath it (paper).  Now graphene, a rather new 2D system, has joined the party.  We have checked that we can make single-layer graphene, so we could jump on that bandwagon if we wanted to.