Andreev-Fano Effect in a Hybrid Normal-Metal/Superconductor
Interferometer |
| |
| Authors: | ZHU Yu MA
Zhong-Shui SUN Qing-Feng LIN Tsung-Han |
| |
| Institution: | 1. State Key Laboratory for Mesoscopic Physics and
Department of Physics, Peking University, Beijing 100871, China
;2. Center for the Physics of Materials and
Department of Physics, McGill University, Montreal, PQ, Canada H3A 2T8 |
| |
| Abstract: | We report on a new type of Fano effect, named as Andreev-Fano effect, in a
hybrid normal-metal/superconductor (N/S) interferometer embedded with a
quantum dot. Compared with the conventional Fano effect, Andreev-Fano effect
has some new features related to the characteristics of Andreev reflection.
In the linear response regime, the line shape is the square of the
conventional Fano shape, while in the nonlinear transport, a sharp resonant
structure is superposed on an expanded interference pattern, which is
qualitatively different from the conventional Fano effect. The phase dependence of the
hybrid N/S interferometer is also distinguished from those of all-N or all-S interferometers. |
| |
| Keywords: | Andreev-Fano effect hybrid N/S interferometer |
|
| 点击此处可从《理论物理通讯》浏览原始摘要信息 |
| 点击此处可从《理论物理通讯》下载免费的PDF全文 |
|
