http://www.cnr.it/ontology/cnr/individuo/prodotto/ID59138
Quantum dot spectroscopy of proximity-induced superconductivity in a two-dimensional electron gas (Articolo in rivista)
- Type
- Label
- Quantum dot spectroscopy of proximity-induced superconductivity in a two-dimensional electron gas (Articolo in rivista) (literal)
- Anno
- 2011-01-01T00:00:00+01:00 (literal)
- Alternative label
Deon F., V. Pellegrini, F. Giazotto G. Biasiol, L. Sorba and F, Beltram (2011)
Quantum dot spectroscopy of proximity-induced superconductivity in a two-dimensional electron gas
in Applied physics letters
(literal)
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- Deon F., V. Pellegrini, F. Giazotto G. Biasiol, L. Sorba and F, Beltram (literal)
- Pagina inizio
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- Rivista
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- DOI: 10.1063/1.3570660
Acknowledgment: The authors would like to thank P. Spathis for fruitful discussions and for help with the cryogenic setup. We acknowledge partial financial support from the E.U. Project HYSWITCH (Grant No. FP6-517567), the MIUR-FIRB No. RBIN06JB4C, the INFM-CNR Seed Project \"Quantum dot refrigeration: accessing the mu K regime in solid-state nano-systems,\" and the NanoSciERA project \"NanoFridge.\" (literal)
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1. CNR, Ist Nanosci, NEST, I-56127 Pisa, Italy (F. Deon, V. Pellegrini, F. Giazotto, L. F.Beltram)
2. Scuola Normale Super Pisa, I-56127 Pisa, Italy F. Deon, V. Pellegrini, F. Giazotto, L. F.Beltram)
3. CNR IOM, Lab TASC, I-34149 Trieste, Italy (G. Biasiol) (literal)
- Titolo
- Quantum dot spectroscopy of proximity-induced superconductivity in a two-dimensional electron gas (literal)
- Abstract
- We report the realization of a hybrid superconductor-quantum dot device by means of top-down nanofabrication starting from a two-dimensional electron gas in a InGaAs/InAlAs semiconductor heterostructure. The quantum dot is defined by electrostatic gates placed within the normal region of a planar Nb-InGaAs quantum well-Nb junction. Measurements in the regime of strong Coulomb blockade as well as cotunneling spectroscopy allow to directly probe the proximity-induced energy gap in a ballistic two-dimensional electron gas coupled to superconductors (literal)
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