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Full-Text Articles in Nanoscience and Nanotechnology
Dynamic Rabi Oscillations In A Quantum Dot Embedded In A Nanobridge In The Presence Of Surface Acoustic Waves, Lev Mourokh, Achim Wixforth, Florian Beil, Max Bichler, Werner Wegscheider, Robert H. Blick
Dynamic Rabi Oscillations In A Quantum Dot Embedded In A Nanobridge In The Presence Of Surface Acoustic Waves, Lev Mourokh, Achim Wixforth, Florian Beil, Max Bichler, Werner Wegscheider, Robert H. Blick
Publications and Research
A quantum dot is created within a suspended nanobridge containing a two-dimensional electron gas. The electron current through this dot exhibits well-pronounced Coulomb blockade oscillations. When surface acoustic waves (SAW) are driven through the nanobridge, Coulomb blockade peaks are shifted. To explain this feature, we derive the expressions for the quantum dot level populations and electron currents through these levels and show that SAW-induced Rabi oscillations lead to the observed phenomenology.
Nanometer Thick Diffused Hafnium And Titanium Oxide Light Sensing Film Structures, Fred J. Cadieu, Lev Murokh
Nanometer Thick Diffused Hafnium And Titanium Oxide Light Sensing Film Structures, Fred J. Cadieu, Lev Murokh
Publications and Research
We examine 10 nm thick film structures containing either Hf or Ti sandwiched between two respective oxide layers.The layers are deposited onto heated substrates to create a diffusion region.We observe a high degree of light sensitivity of the electric current through the film thickness for one polarity of an applied voltage. For the other polarity, the current is not affected by the light. We explain the observed phenomenology using the single-particle model based on the existence of interface states on the metal-oxide interfaces.