Coherent Transport Through a Quantum Trombone
| dc.creator | Allsopp, N. K. | |
| dc.creator | Lambert, C. J. | |
| dc.date | 1994-03-17 | |
| dc.date.accessioned | 2026-07-07T03:07:12Z | |
| dc.date.available | 2026-07-07T03:07:12Z | |
| dc.description | We highlight a new "transverse" interference effect, arising from the coupling between electrons and holes, induced by a superconducting island in contact with a normal metal. As an example we compute the electrical conductance G of a T-shaped mesoscopic sample, formed by joining a horizontal bar of normal metal to a vertical leg of the same material. With a superconducting island located on the vertical leg and the current flowing horizontally, we examine the dependence of G on the distance L of the island from the horizontal bar. Of particular interest is the differential conductance G(E) at an applied voltage E=eV, which due to quantum interference between electrons and Andreev reflected holes, is predicted to oscillate with both L and E. For a system with a spherical Fermi surface, the period of oscillation with E is 3.142 (E_F/k_FL) and with L is 3.142 (E_F/k_F E), where E_F is the Fermi energy and k_F the Fermi wavevector. | |
| dc.description | Tex. 4 figures available on request to: pyb064@cent1.lancs.ac.uk (Nick Allsopp) | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9403068 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9403068 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/27083 | |
| dc.subject | Condensed Matter | |
| dc.title | Coherent Transport Through a Quantum Trombone | |
| dc.type | text |