Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Dolcini, F."'
Publikováno v:
Phys. Rev. B 100, 155306 (2019)
When a local and attractive potential is quenched in a nanowire, the spectrum changes its topology from a purely continuum to a continuum and discrete portion. We show that, under appropriate conditions, this quench leads to stable coherent oscillati
Externí odkaz:
http://arxiv.org/abs/1909.01574
Autor:
Gonnelli, R. S., Piatti, E., Sola, A., Tortello, M., Dolcini, F., Galasso, S., Nair, J. R., Gerbaldi, C., Cappelluti, E., Bruna, M., Ferrari, A. C.
Publikováno v:
2D Mater. 4, 035006 (2017)
We induce surface carrier densities up to $\sim7\cdot 10^{14}$cm$^{-2}$ in few-layer graphene devices by electric double layer gating with a polymeric electrolyte. In 3-, 4- and 5-layer graphene below 20-30K we observe a logarithmic upturn of resista
Externí odkaz:
http://arxiv.org/abs/1610.09102
Publikováno v:
Physical Review B 92, 235423 (2015)
A recent study [Rosati, Dolcini, and Rossi, Appl. Phys. Lett. 106, 243101 (2015)] has predicted that, while in semiconducting single-walled carbon nanotubes (SWNTs) an electronic wave packet experiences the typical spatial diffusion of conventional m
Externí odkaz:
http://arxiv.org/abs/1509.08274
Autor:
Fornieri, A., Amado, M., Carillo, F., Dolcini, F., Biasiol, G., Sorba, L., Pellegrini, V., Giazotto, F.
Publikováno v:
Nanotechnology 24, 245201 (2013)
We report the realization of a ballistic Josephson interferometer. The interferometer is made by a quantum ring etched in a nanofabricated two-dimensional electron gas confined in an InAs-based heterostructure laterally contacted to superconducting n
Externí odkaz:
http://arxiv.org/abs/1211.1629
Publikováno v:
Phys. Rev. Lett. 108, 156401 (2012)
We analyze the nonlinear transport properties of a bilayer exciton condensate that is contacted by four metallic leads by calculating the full counting statistics of electron transport for arbitrary system parameters. Despite its formal similarity to
Externí odkaz:
http://arxiv.org/abs/1203.0455
Autor:
Dolcini, F., Giazotto, F.
Publikováno v:
Phys. Rev. B 80 024503 (2009)
The adiabatic magnetization of a superconductor is a cooling principle proposed in the 30s, which has never been exploited up to now. Here we present a detailed dynamic description of the effect, computing the achievable final temperatures as well as
Externí odkaz:
http://arxiv.org/abs/0811.4127
Publikováno v:
Phys. Rev. B 75, 045332 (2007)
The electrical current noise of a quantum wire is expected to increase with increasing applied voltage. We show that this intuition can be wrong. Specifically, we consider a single channel quantum wire with impurities and with a capacitive coupling t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609227
Publikováno v:
Fluctuations and Noise in Materials II, edited by P. Svedlindh, D. Popovic, and M.B.Weissmann, Proceedings of SPIE Vol. 5843 (SPIE, Bellingham, WA, 2005)
The current noise of a voltage biased interacting quantum wire adiabatically connected to metallic leads is computed in presence of an impurity in the wire. We find that in the weak backscattering limit the Fano factor characterizing the ratio betwee
Externí odkaz:
http://arxiv.org/abs/cond-mat/0505722
Publikováno v:
Phys. Rev. Lett. 92, 226405 (2004)
The current noise of a voltage biased interacting quantum wire adiabatically connected to metallic leads is computed in presence of an impurity in the wire. We find that in the weak backscattering limit the Fano factor characterizing the ratio betwee
Externí odkaz:
http://arxiv.org/abs/cond-mat/0402479
Autor:
Dolcini, F., Montorsi, A.
By exploiting the technique of Sutherland's species, introduced in \cite{DOMO-RC}, we derive the exact spectrum and partition function of a 1D extended Hubbard model. The model describes a competition between dynamics of single carriers and short-rad
Externí odkaz:
http://arxiv.org/abs/cond-mat/0110264