56 citations · 374 across the 19 of their papers we have counts for
12 papers · 1 filter
Inverted-Mode Scanning Tunneling Microscopy for Atomically Precise Fabrication
Eduardo Barrera, Bheeshmon Thanabalasingam, Rafik Addou +57
Scanning Tunneling Microscopy (STM) enables fabrication of atomically precise structures with unique properties and growing technological potential. However, reproducible manipulat…
Wannier quasi-classical approach to high harmonic generation in semiconductors
Andrew M. Parks, Guilmot Ernotte, Adam Thorpe +4
We develop a quasi-classical theory of high harmonic generation in semiconductors based on an interband current that has been transformed from Bloch to Wannier basis. The Wannier q…
A Gauge Invariant Formulation of Interband and Intraband Currents in Solids
Guilmot Ernotte, T. J. Hammond, Marco Taucer
Experiments and simulations in solid-state high harmonic generation often make use of the distinction between interband and intraband currents. These two contributions to the total…
Resolving and Tuning Carrier Capture Rates at a Single Silicon Atom Gap State
Mohammad Rashidi, Erika Lloyd, Taleana R. Huff +4
We report on tuning the carrier capture events at a single dangling bond (DB) midgap state by varying the substrate temperature, doping type, and doping concentration. All-electron…
All-Electronic Nanosecond-Resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
Mohammad Rashidi, Wyatt Vine, Jacob A. J. Burgess +5
The miniaturization of semiconductor devices to the scales where small numbers of dopants can control device properties requires the development of new techniques capable of charac…
Time-Resolved Imaging of Negative Differential Resistance on the Atomic Scale
Mohammad Rashidi, Marco Taucer, Isil Ozfidan +6
Negative differential resistance remains an attractive but elusive functionality, so far only finding niche applications. Atom scale entities have shown promising properties, but v…
New fabrication technique for highly sensitive qPlus sensor with well-defined spring constant
Hatem Labidi, Martin Kupsta, Taleana Huff +5
A new technique for the fabrication of highly sensitive qPlus sensor for atomic force microscopy (AFM) is described. Focused ion beam was used to cut then weld onto a bare quartz t…
Scanning tunneling spectroscopy reveals a silicon dangling bond charge state transition
Hatem Labidi, Marco Taucer, Mohammad Rashidi +6
We report the study of single dangling bonds (DB) on the hydrogen terminated silicon (100) surface using a low temperature scanning tunneling microscope (LT-STM). By investigating…
Characterizing the rate and coherence of single-electron tunneling between two dangling bonds on the surface of silicon
Zahra Shaterzadeh-Yazdi, Lucian Livadaru, Marco Taucer +4
We devise a scheme to characterize tunneling of an excess electron shared by a pair of tunnel-coupled dangling bonds on a silicon surface -- effectively a two-level system. Theoret…
Single Electron Dynamics of an Atomic Silicon Quantum Dot on the H-Si(100) 2x1 Surface
Marco Taucer, Lucian Livadaru, Paul G. Piva +4
Here we report the direct observation of single electron charging of a single atomic Dangling Bond (DB) on the H-Si(100) 2x1 surface. The tip of a scanning tunneling microscope is…
Consequences of Many-cell Correlations in Treating Clocked Quantum-dot Cellular Automata Circuits
Marco Taucer, Faizal Karim, Konrad Walus +1
Quantum-dot Cellular Automata (QCA) provides a basis for classical computation without transistors. Many simulations of QCA rely upon the so-called Intercellular Hartree Approximat…
Theory of Non-equilibrium Single Electron Dynamics in STM Imaging of Dangling Bonds on a Hydrogenated Silicon Surface
Lucian Livadaru, Jason Pitters, Marco Taucer +1
During fabrication and scanning-tunneling-microscope (STM) imaging of dangling bonds (DBs) on a hydrogenated silicon surface, we consistently observed halo-like features around iso…