SINGLE COOPER PAIR PUMP

被引：60
作者：
GEERLIGS, LJ
VERBRUGH, SM
HADLEY, P
MOOIJ, JE
POTHIER, H
LAFARGE, P
URBINA, C
ESTEVE, D
DEVORET, MH
机构：
[1] DELFT UNIV TECHNOL, DEPT APPL PHYS, 2600 GA DELFT, NETHERLANDS
[2] CENS, SERV PHYS ETAT CONDENSE, F-91191 GIF SUR YVETTE, FRANCE
来源：
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1991年 / 85卷 / 03期
关键词：
D O I：
10.1007/BF01307630
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have operated a Cooper pair pump, a linear array of superconducting tunnel junctions in which single Cooper pairs are moved under the influence of ac signals applied to two gate electrodes. The pump is based on the Coulomb blockade of charge tunneling. Because of the small junction capacitance precisely one Cooper pair is transferred per ac cycle. The current-voltage characteristics of this device show current plateaus close to 2ef, where f is the frequency of the ac voltages. Deviations are explained in terms of Zener tunneling, Cooper pair co-tunneling, and sporadic quasiparticle tunneling.
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收藏
页码：349 / 355
页数：7
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