Browsing by Subject "Electron tunneling"
Now showing items 113 of 13

Article
Analysis of the transport process providing spin injection through an Fe/AlGaAs Schottky barrier
(2003)Electrical injection through a reverse biased Fe/AlGaAs Schottky contact was used to obtain electronspin polarizations in a GaAs quantum well. The analysis of the transport data using the Rowell criteria shows that ...

Conference Object
Coherence in electron transfer pathways
(2011)Central to the view of electrontransfer reactions is the idea that nuclear motion generates a transition state geometry at which the electron/hole amplitude propagates coherently from the electron donor to the electron ...

Article
Effects of initial state preparation on the distance dependence of electron transfer through molecular bridges and wires
(2003)The dependence of electron transfer rates and yields in bridged molecular systems on the bridge length was discussed. The dependence of the zerobias conduction of molecular wires on wire length were also discussed. Both ...

Article
Efficient spin detection across the hybrid Co/GaAs schottky interface
(2007)The electron spin detection efficiency was studied across Co/GaAs structures using photoexcitation techniques. Two sets of samples were prepared where the substrate surface was pretreated by annealing prior to growth for ...

Article
Electron transfer contact maps
(1997)An exact approach is introduced to establish and compare quantitative structurefunction relationships in electron transfer proteins. The strategy is based on the idea of an electron transfer contact map and is motivated ...

Article
Electron transfer through fluctuating bridges: On the validity of the superexchange mechanism and timedependent tunneling matrix elements
(2001)An attempt is made to find the most general description of the superexchange mechanism that is valid for timedependent donorbridgeacceptor systems. Timedependent electrontransfer probabilities that involve single MD ...

Article
Electronic structure of piezoelectric doublebarrier InAs/InP/InAs/InP/InAs (111) nanowires
(2004)The numerical selfconsistent solution of the PoissonSchrodinger equations in cylindrical coordinates for calculating electronic states in the effective mass approximation was implemented. High accuracy and rapid convergence ...

Article
Floquet analysis for vibronically modulated electron tunneling
(2011)Electron tunneling provides the primary reaction channel for electron transfer (ET) in many molecular systems. The analysis of such systems therefore requires the consideration of electronic coherence and interference ...

Article
Inelastic electron tunneling erases couplingpathway interferences
(2004)Theoretical analysis of nonadiabatic electrontransfer reactions in molecules usually assumes that electron amplitude propagates coherently from the reductant to the oxidant via covalent and noncovalent coupling pathways. ...

Article
Initial/final state selection of the spin polarization in electron tunneling across an epitaxial FeGaAs (001) interface
(2007)Spin dependent electron transport across epitaxial FeGaAs (001) interfaces has been investigated using photoexcitation techniques. Spin filtering is observed in the forward bias regime and its sign is switched by using ...

Article
Investigation of spinpolarized resonant tunneling through doublebarrier magnetic tunnel junctions by selfconsistent solution of the PoissonSchrödinger equations
(2003)The article discusses the investigation of spinpolarized resonant tunneling through double barrier magnetic tunnel junctions (DBMTJ) by the selfconsistent solution of Poissons and Schrödingers equations using transfer ...

Article
Persistence of structure over fluctuations in biological electrontransfer reactions
(2008)In the softwet environment of biomolecular electron transfer, it is possible that structural fluctuations could wash out mediumspecific electronic effects on electron tunneling rates. We show that beyond a transition ...

Article
Tunneling in PbYBCO junctions: Determining the symmetry of the pairing state
(1995)We report on our efforts to understand the origin of supercurrent observed in caxis tunnel junctions on YBCO [Sun A. G. et al., Phys. Rev. Lett. 72, 2267 (1994).] by studying the phase coherence of aaxis/caxis and ...