Influence of a single defect on the conductance of a tunnel point contact between a normal metal and a superconductor
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Influence of a single defect on the conductance of a tunnel point contact between a normal metal and a superconductor
|
|
| Creator |
Avotina, Ye.S.
Kolesnichenko, Yu.A. van Ruitenbeek, J.M. |
|
| Subject |
Электpонные свойства металлов и сплавов
|
|
| Description |
We have investigated theoretically the conductance of a normal–superconductor point contact in the tunnel limit and analyzed the quantum interference effects originating from the scattering of quasi-particles by point-like defects. Analytical expressions for the oscillatory dependence of the conductance on the position of the defect are obtained for the defect situated either in the normal metal, or in the superconductor. It is found that the amplitude of oscillations significantly increases when the applied bias approaches the gap energy of the superconductor. The spatial distribution of the order parameter near the surface in the presence of a defect is also obtained. |
|
| Date |
2017-05-27T10:52:30Z
2017-05-27T10:52:30Z 2008 |
|
| Type |
Article
|
|
| Identifier |
Influence of a single defect on the conductance of a tunnel point contact between a normal metal and a superconductor / Ye.S. Avotina, Yu.A. Kolesnichenko, J.M. van Ruitenbeek // Физика низких температур. — 2008. — Т. 34, № 11. — С. 1184-1191. — Бібліогр.: 32 назв. — англ.
0132-6414 PACS: 73.23.-b;72.10.Fk http://dspace.nbuv.gov.ua/handle/123456789/117881 |
|
| Language |
en
|
|
| Relation |
Физика низких температур
|
|
| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
|
|