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Article
Time-resolved Coulomb collision of single electrons
A series of recent experiments have shown that collision of ballistic electrons in semiconductors can be used to probe the indistinguishability of single-electron wavepackets. Perhaps surprisingly, their Coulo...
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Article
A semiconductor photon-sorter
The nonlinear optical response of a single quantum dot can be used to separate the one- and two-photon components of a weak laser beam.
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Article
All-electric all-semiconductor spin field-effect transistors
Two quantum point contacts are used to respectively inject and detect spins by purely electrical means in an all-semiconductor spin transistor.
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Article
Electric control of the spin Hall effect by intervalley transitions
Controlling spin-related material properties by electronic means is a key step towards future spintronic technologies. The spin Hall effect (SHE) has become increasingly important for generating, detecting and...
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Chapter and Conference Paper
Off-axis electron holography of focused ion beam milled GaAs and Si p-n junctions
Si and GaAs p-n junctions have been characterised in the transmission electron microscope using off-axis electron holography. Focused ion beam milling was used to prepare parallel-sided membranes with thicknes...
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Article
Growth Temperature Dependence of Size Distribution of Self-Assembled Inas Quantum Dots on Gaas(001): From Diffusion-To Strain-Limited Growth
We have investigated the molecular beam epitaxy (MBE) growth of buried InAs quantum dots on GaAs (001) surface, as a function of deposition temperature, by transmission electron microscopy (TEM) and photolumin...