Zobrazeno 1 - 10
of 1 212
pro vyhledávání: '"Sorba, L"'
Autor:
Rocci, M., De Simoni, G., Puglia, C., Esposti, D. Degli, Strambini, E., Zannier, V., Sorba, L., Giazotto, F.
Publikováno v:
ACS NANO (2020)
In a family of experiments carried on all-metallic supercurrent nano-transistors a surprising gating effect has been recently shown. These include the full suppression of the critical supercurrent, the increase of quasiparticle population, the manipu
Externí odkaz:
http://arxiv.org/abs/2006.07091
Autor:
Strambini, E., Iorio, A., Durante, O., Citro, R., Sanz-Fernández, C., Guarcello, C., Tokatly, I. V., Braggio, A., Rocci, M., Ligato, N., Zannier, V., Sorba, L., Bergeret, F. S., Giazotto, F.
Publikováno v:
Nature Nanotechnology (2020)
A battery is a classical apparatus which converts a chemical reaction into a persistent voltage bias able to power electronic circuits. Similarly, a phase battery is a quantum equipment which provides a persistent phase bias to the wave function of a
Externí odkaz:
http://arxiv.org/abs/2001.03393
Publikováno v:
JETP Letters 107, 320 (2018)
We observe an unusual behavior of the low-temperature magnetoresistance of the high-mobility two-dimensional electron gas in InGaAs/InAlAs quantum wells in weak perpendicular magnetic fields. The observed magnetoresistance is qualitatively similar to
Externí odkaz:
http://arxiv.org/abs/1801.06984
Autor:
Saldaña, J. C. Estrada, Žitko, R., Cleuziou, J. P., Lee, E. J. H., Zannier, V., Ercolani, D., Sorba, L., Aguado, R., De Franceschi, S.
We study the superconducting proximity effect in an InAs nanowire contacted by Ta-based superconducting electrodes. Using local bottom gates, we control the potential landscape along the nanowire, tuning its conductance to a quasi-ballistic regime. A
Externí odkaz:
http://arxiv.org/abs/1801.01855
Autor:
Gomes, U. P., Ercolani, D., Zannier, V., Battiato, S., Ubyivovk, E., Mikhailovskii, V., Murata, Y., Heun, S., Beltram, F., Sorba, L.
Publikováno v:
Nanotechnology 28 (2017) 065603
We report on the heterogeneous nucleation of catalyst-free InAs nanowires on Si (111) substrates by chemical beam epitaxy. We show that nanowire nucleation is enhanced by sputtering the silicon substrate with energetic particles. We argue that partic
Externí odkaz:
http://arxiv.org/abs/1701.05153
Autor:
Tikhonov, E. S., Shovkun, D. V., Ercolani, D., Rossella, F., Rocci, M., Sorba, L., Roddaro, S., Khrapai, V. S.
Publikováno v:
Scientific Reports 6, Article number: 30621 (2016)
The control and measurement of local non-equilibrium configurations is of utmost importance in applications on energy harvesting, thermoelectrics and heat management in nano-electronics. This challenging task can be achieved with the help of various
Externí odkaz:
http://arxiv.org/abs/1604.07372
Autor:
Eisele, M., Cocker, T. L., Huber, M. A., Plankl, M., Viti, L., Ercolani, D., Sorba, L., Vitiello, M. S., Huber, R.
Publikováno v:
Nature Photonics 8, 841 - 845 (2014)
Phase-locked ultrashort pulses in the rich terahertz (THz) spectral range have provided key insights into phenomena as diverse as quantum confinement, first-order phase transitions, high-temperature superconductivity, and carrier transport in nanomat
Externí odkaz:
http://arxiv.org/abs/1604.04304
Autor:
Tikhonov, E. S., Shovkun, D. V., Khrapai, V. S., Ercolani, D., Rossella, F., Rocci, M., Sorba, L., Roddaro, S.
Publikováno v:
Semicond. Sci. Technol. 31 104001 (2016)
We apply noise thermometry to characterize charge and thermoelectric transport in single InAs nanowires (NWs) at a bath temperature of 4.2 K. Shot noise measurements identify elastic diffusive transport in our NWs with negligible electron-phonon inte
Externí odkaz:
http://arxiv.org/abs/1602.08851
Autor:
Paajaste, J., Strambini, E., Amado, M., Roddaro, S., San-Jose, P., Aguado, R., Bergeret, F. S., Ercolani, D., Sorba, L., Giazotto, F.
Publikováno v:
Nat. Commun. (2017)
The Josephson effect is a fundamental quantum phenomenon consisting in the appearance of a dissipationless supercurrent in a weak link between two superconducting (S) electrodes. While the mechanism leading to the Josephson effect is quite general, i
Externí odkaz:
http://arxiv.org/abs/1601.02955
Publikováno v:
Nano Lett. 15, 3, 1803-1808 (2015)
We have studied mesoscopic Josephson junctions formed by highly $n$-doped InAs nanowires and superconducting Ti/Pb source and drain leads. The current-voltage properties of the system are investigated by varying temperature and external out-of-plane
Externí odkaz:
http://arxiv.org/abs/1411.0990