Browsing Physics, Engineering Physics and Astronomy, Department of by Author "Knobel, Robert"
Now showing items 1-10 of 10
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Design and Fabrication of a Nanocantilever for High-Speed Force Microscopy
Campbell, Jennifer (2009-02-02)The atomic force microscope (AFM) has become an important tool in many fields ranging from materials science to biology. The central component of the AFM is a probe consisting of a soft cantilever to which a sharp tip is ... -
Design, fabrication and characterization of a suspended heterostructure
Leduc, Vincent Louis Philippe (2007-09-28)This thesis presents the design and theoretical modeling of an aluminum gallium arsenide/gallium arsenide heterostructure from which suspended nanoscale mechanical resonators with embedded two-dimensional electron gas ... -
Fabrication and DC characterization of single electron transistors at low temperature
Dubejsky, Gregory Stefan (2007-08-02)The metallic single electron transistor (SET) has been shown to provide charge sensitivity on the order of 10-6 e/(Hz)1/2, when operated as a charge amplifier. This makes it an ideal candidate for low-noise measurement ... -
Fabrication, Photoluminescence, and Electrical Measurements of Molybdenum DiSulphide Films and Heterostructures
Tyson, KurtTransition-metal dichalcogenides (TMDs) exhibit unique optical and electronic properties that make them highly appealing to the scientific community. Like graphene, they have strong in-plane bonds allowing for easy fabrication ... -
Feedback controlled electromigration for the fabrication of point contacts and noise measurement applications
Campbell, Jennifer (2015-10-03)Lithographically fabricated point contacts serve as important examples of mesoscopic conductors, as electrodes for molecular electronics, and as ultra-sensitive transducers for mechanical motion. We have developed a ... -
Investigating electromechanical coupling between membrane crystal materials and superconducting microwave resonators
Northeast, DavidThis work studies the use of two-dimensional (2D) crystal materials as mechanical elements in an electromechanical resonant system. 2D materials form crystals that have strong in-plane bonds but weak out-of-plane bonds, ... -
Nanoelectromechanical Studies of Suspended Resonators using Graphene grown by Chemical Vapour Deposition
Chaudhuri, ArnabGraphene is an ideal material for high quality nanoelectromechanical resonators due to its high Young's modulus, low mass to surface ratio, ability to sustain high in-plane strain, and unique electrical properties like ... -
Progress Towards the Quantum Limit: High and Low Frequency Measurements of Nanoscale Structures
Rideout, Joshua (2010-03-02)In this thesis, I present the work performed towards a proposal to couple a piezoelectric, nanomechanical beam to a radio frequency single electron transistor (RF-SET). Lumped element RF circuit theory is applied to 50 ... -
Towards Quantum-limited Measurement with the Radio Frequency Superconducting Single-Electron Transistor
Pierobon, Scott Carson (2010-08-17)In the past decade, nanomechanical resonators have found use in the work towards understanding mesoscopic quantum systems and the necessary validation of quantum mechanics on this scale. In 2010, the observation and state ... -
Towards the Fabrication and Characterization of a Nanomechanical Electron Shuttle
Lucht, Benjamin (2010-01-29)First proposed in the late 1990's, a nanomechanical electron shuttle is a device where an electrically isolated island moves a definite number of electrons between two leads, producing a current that is directly related ...