Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Bucheli, D."'
Publikováno v:
Phys. Rev. Lett. 116, 026804 (2016)
Oxide heterostructures are of great interest both for fundamental and applicative reasons. In particular the two-dimensional electron gas at the LaAlO$_3$/SrTiO$_3$ or LaTiO$_3$/SrTiO$_3$ interfaces displays many different physical properties and fun
Externí odkaz:
http://arxiv.org/abs/1506.04777
Autor:
Caprara, S., Bucheli, D., Scopigno, N., Bergeal, N., Biscaras, J., Hurand, S., Lesueur, J., Grilli, M.
Publikováno v:
Supercond. Sci. Technol. 28 (2015) 014002
Several experiments reveal the inhomogeneous character of the superconducting state that occurs when the carrier density of the two-dimensional electron gas formed at the LaXO3/SrTiO3 (X=Al or Ti) interface is tuned above a threshold value by means o
Externí odkaz:
http://arxiv.org/abs/1502.07572
Autor:
Bovenzi, N., Finocchiaro, F., Scopigno, N., Bucheli, D., Caprara, S., Seibold, G., Grilli, M.
Publikováno v:
Journal of Superconductivity and Novel Magnetism 28, 1273 (2015)
LaAlO3/SrTiO3 ad LaTiO3/SrTiO3 interfaces are known to host a strongly inhomogeneous (nearly) two-dimensional electron gas (2DEG). In this work we present three unconventional electronic mechanisms of electronic phase separation (EPS) in a 2DEG as a
Externí odkaz:
http://arxiv.org/abs/1502.07561
We investigate a two-dimensional electron model with Rashba spin-orbit interaction where the coupling constant $g=g(n)$ depends on the electronic density. It is shown that this dependence may drive the system unstable towards a long-wave length charg
Externí odkaz:
http://arxiv.org/abs/1407.4280
Publikováno v:
Supercond. Sci. Technol. 28 (2015) 045004
We present a theory for the pseudo-gap state recently observed at the LaAlO3/SrTiO3 interface, based on superconducting islands embedded in a metallic background. Superconductivity within each island is BCS-like, and the local critical temperatures a
Externí odkaz:
http://arxiv.org/abs/1405.4666
Publikováno v:
Phys. Rev. B 89, 174506 (2014)
According to the Goldstone theorem the breaking of a continuous U(1) symmetry comes along with the existence of low-energy collective modes. In the context of superconductivity these excitations are related to the phase of the superconducting (SC) or
Externí odkaz:
http://arxiv.org/abs/1401.3637
Publikováno v:
Physical Review B 89, 195448 (2014)
We propose a model for the two-dimensional electron gas formed at the interface of oxide heterostructures that includes a Rashba spin-orbit coupling proportional to an electric field oriented perpendicularly to the interface. Taking into account the
Externí odkaz:
http://arxiv.org/abs/1307.5427
Autor:
Caprara, S., Biscaras, J., Bergeal, N., Bucheli, D., Hurand, S., Feuillet-Palma, C., Rastogi, A., Budhani, R. C., Lesueur, J., Grilli, M.
Publikováno v:
Physical Review B 88, 020504(R) (2013)
The two-dimensional electron gas at the LaTiO3/SrTiO3 or LaAlO3/SrTiO3 oxide interfaces becomes superconducting when the carrier density is tuned by gating. The measured resistance and superfluid density reveal an inhomogeneous superconductivity resu
Externí odkaz:
http://arxiv.org/abs/1304.2970
Autor:
Lemarié, G., Kamlapure, A., Bucheli, D., Benfatto, L., Lorenzana, J., Seibold, G., Ganguli, S. C., Raychaudhuri, P., Castellani, C.
Publikováno v:
Phys. Rev. B 87, 184509 (2013)
We investigate theoretically and experimentally the statistical properties of the inhomogeneous order-parameter distribution (OPD) at the verge of the superconductor-insulator transition (SIT). We find within two prototype fermionic and bosonic model
Externí odkaz:
http://arxiv.org/abs/1208.3336
Motivated by recent experimental data on thin film superconductors and oxide interfaces we propose a random-resistor network apt to describe the occurrence of a metal-superconductor transition in a two-dimensional electron system with disorder on the
Externí odkaz:
http://arxiv.org/abs/1205.0454