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Coulomb blockade and superconductor-insulator transition in ultrasmall single tunnel junctions

✍ Scribed by Yoshihiro Shimazu; Tomohiro Yamagata; Seiichiro Ikehata; Shun-ichi Kobayashi


Book ID
112784423
Publisher
Springer
Year
1996
Tongue
English
Weight
163 KB
Volume
46
Category
Article
ISSN
0011-4626

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πŸ“œ SIMILAR VOLUMES


Dependence of Coulomb blockade in ultras
✍ Yoshihiro Shimazu; Seiichiro Ikehata; Shun-ichi Kobayashi πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 202 KB

We studied small-capacitance single tunnel junctions with various tunnel resistances. In order to reduce the environmental effect, high-resistance leads were adopted for measurement. We observed the gradual weakening and disappearance of the Coulomb blockade as the tunnel resistance in the absence o

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A microscopic theory for ultrasmall ferromagnetic double tunnel junctions is proposed, which selfconsistently describes the higher order tunneling processes as well as the charged states of the islands for arbitrary environmental impedance. Such a theory is indispensable to understanding of the phys

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The finite temperature I-V-;:haracteristic of a normal tunnel junction coupled to its electromagnetic environment is calculated. It is shown that due to quantum fluctuations of the charge the Coulomb gap is only observable provided the impedance Z(w) of the environment exceeds the resistance quantum

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We study the I-V curve of a small capacitance Josephson tunnel junction with a zero subgap conductance. In the limit of large external impedance and at low temperature, single electron tunneling across the junction is suppressed for eV < 2A + Ec due to a combination of superconducting and Coulomb ga