Time-dependent universal conductance fluctuations in mesoscopic Au wires: implications
| dc.creator | Trionfi, A. | |
| dc.creator | Lee, S. | |
| dc.creator | Natelson, D. | |
| dc.date | 2006-07-31 | |
| dc.date | 2007-02-07 | |
| dc.date.accessioned | 2026-07-07T07:54:39Z | |
| dc.date.available | 2026-07-07T07:54:39Z | |
| dc.description | In cold, mesoscopic conductors, two-level fluctuators lead to time-dependent universal conductance fluctuations (TDUCF) manifested as $1/f$ noise. In Au nanowires, we measure the magnetic field dependence of TDUCF, weak localization (WL), and magnetic field-driven (MF) UCF before and after treatments that alter magnetic scattering and passivate surface fluctuators. Inconsistencies between $L_ϕ^{\rm WL}$ and $L_ϕ^{\rm TDUCF}$ strongly suggest either that the theory of these mesoscopic phenomena in weakly disordered, highly pure Au is incomplete, or that the assumption that the TDUCF frequency dependence remains $1/f$ to very high frequencies is incorrect. In the latter case, TDUCF in excess of $1/f$ expectations may have implications for decoherence in solid-state qubits. | |
| dc.description | 8 pages, 9 figures, accepted to PRB | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0608003 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0608003 | |
| dc.identifier | Phys. Rev. B 75, 104202 (2007) | |
| dc.identifier | doi:10.1103/PhysRevB.75.104202 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/126690 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.title | Time-dependent universal conductance fluctuations in mesoscopic Au wires: implications | |
| dc.type | text |