Xiaoguang Zhang

Professor

PhD, Physics, Northwestern University, 1989 MS, Physics, Northwestern University, 1985 BS, Physics, Peking University, 1983

Research Group

Quantum Theory Project

Research Interests

1. Theory and modeling of electron transport in magnetic tunnel junctions, molecular junctions, polymers and nanoscale materials. 2. Calculation of electron mobility and defect capture cross section in semiconductors. 3. Image informatics for scanning tunneling potentiometry.

Selected Publications

Energy convexity as a consequence of decoherence and pair-extensive interactions in many-electron systems A Gonis, XG Zhang, DM Nicholson, GM Stocks Journal of Physics and Chemistry of Solids 75 (5), 680-687 Energy Gap Induced by Friedel Oscillations Manifested as Transport Asymmetry at Monolayer-Bilayer Graphene Boundaries KW Clark, XG Zhang, G Gu, J Park, G He, RM Feenstra, AP Li Physical Review X 4 (1), 011021 Self-entanglement and the dissociation of homonuclear diatomic molecules A Gonis, XG Zhang, DM Nicholson, GM Stocks Molecular Physics 112 (3-4), 453-461 Spatially Resolved Mapping of Electrical Conductivity across Individual Domain (Grain) Boundaries in Graphene KW Clark, XG Zhang, IV Vlassiouk, G He, RM Feenstra, AP Li ACS nano 7 (9), 7956-7966 Polaronic transport and current blockades in epitaxial silicide nanowires and nanowire arrays V Iancu, XG Zhang, TH Kim, LD Menard, PRC Kent, ME Woodson, … Nano letters 13 (8), 3684-3689 Spin-dependent tunneling conductance of Fe| MgO| Fe sandwiches WH Butler, XG Zhang, TC Schulthess, JM MacLaren Physical Review B 63 (5), 054416 Layer KKR approach to Bloch-wave transmission and reflection: Application to spin-dependent tunneling JM MacLaren, XG Zhang, WH Butler, X Wang Physical Review B 59 (8), 5470 Large magnetoresistance in bcc Co/ Mg O/ Co and Fe Co/ Mg O/ Fe Co tunnel junctions XG Zhang, WH Butler Physical Review B 70 (17), 172407 Coherent electron transport through an azobenzene molecule: A light-driven molecular switch C Zhang, MH Du, HP Cheng, XG Zhang, AE Roitberg, JL Krause Physical review letters 92 (15), 158301 Effects of the iron-oxide layer in Fe-FeO-MgO-Fe tunneling junctions XG Zhang, WH Butler, A Bandyopadhyay Physical Review B 68 (9), 092402