Realization of GHz-frequency impedance matching circuits for nano-scale devices
arXiv:1207.4403 · doi:10.1063/1.4739451
Abstract
Integrating nano-scale objects, such as single molecules or carbon nanotubes, into impedance transformers and performing radio-frequency measurements allows for high time-resolution transport measurements with improved signal-to-noise ratios. The realization of such transformers implemented with superconducting transmission lines for the 2-10 GHz frequency range is presented here. Controlled electromigration of an integrated gold break junction is used to characterize a 6 GHz impedance matching device. The real part of the RF impedance of the break junction extracted from microwave reflectometry at a maximum bandwidth of 45 MHz of the matching circuit is in good agreement with the measured direct current resistance.
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Cited by in corpus (12)
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- Feedback-controlled electromigration for the fabrication of point contacts
- Rapid microwave-only characterization and readout of quantum dots using multiplexed gigahertz-frequency resonators
- Electrolyte gate dependent high-frequency measurement of graphene field-effect transistor for sensing applications
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- Measurements of a Quantum Dot with an Impedance-Matching On-Chip LC Resonator at GHz Frequencies
- Blocking-state influence on shot noise and conductance in quantum dots
- Contact-less characterizations of encapsulated graphene p-n junctions
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