Coulomb Blockade and Multiple Andreev Reflection in a Superconducting Single-Electron Transistor
Coulomb Blockade and Multiple Andreev Reflection in a Superconducting Single-Electron Transistor
复制标题
超导单电子晶体管中的库仑阻塞和多重安德烈夫反射
DOI:
10.1007/s10909-017-1837-4
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发表时间:
2018
影响因子:
2
通讯作者:
E. Scheer
中科院分区:
文献类型:
--
作者:
T. Lorenz;S. Sprenger;E. Scheer
In superconducting quantum point contacts, multiple Andreev reflection (MAR), which describes the coherent transport ofmquasiparticles each carrying an electron charge with, sets in at voltage thresholds. In single-electron transistors, Coulomb blockade, however, suppresses the current at low voltage. The required voltage for charge transport increases with the square of the effective charge. Thus, studying the charge transport in all-superconducting single-electron transistors (SSETs) sets these two phenomena into competition. In this article, we present the fabrication as well as a measurement scheme and transport data for a SSET with one junction in which the transmission and thereby the MAR contributions can be continuously tuned. All regimes from weak to strong coupling are addressed. We extend the Orthodox theory by incorporating MAR processes to describe the observed data qualitatively. We detect a new transport process the nature of which is unclear at present. Furthermore, we observe a renormalization of the charging energy when approaching the strong coupling regime.
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影响因子:
8.6
作者:
Y. Nazarov
通讯作者:
Y. Nazarov
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
D. Chouvaev;L. Kuzmin;D. Golubev;A. Zaikin
通讯作者:
A. Zaikin
影响因子:
1.8
作者:
J. Hergenrother;M. Tuominen;T. Tighe;M. Tinkham
通讯作者:
M. Tinkham
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
R. Fitzgerald;S. Pohlen;M. Tinkham
通讯作者:
M. Tinkham
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
P. Joyez
通讯作者:
P. Joyez