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Control of the electromagnetic environment for single Josephson junctions using arrays of dc SQUIDs
KTH, Superseded Departments, Physics.ORCID iD: 0000-0001-8534-6577
2001 (English)In: Superconductors Science and Technology, ISSN 0953-2048, E-ISSN 1361-6668, Vol. 14, no 10, 870-874 p.Article in journal (Refereed) Published
Abstract [en]

We have measured the current-voltage characteristics of small-capacitance single Josephson junctions at low temperatures (T less than or equal to 0.04 K), where the strength of the coupling between the single junction and the electromagnetic environment was controlled with one-dimensional arrays of dc SQUIDs. When the zero-bias resistance of the SQUID arrays is much higher than the quantum resistance h/e(2) approximate to 26 k Omega, a transition to a clear Coulomb blockade of Cooper-pair tunnelling is induced in the single junction. The measured blockade voltage agrees with the theoretical prediction.

Place, publisher, year, edition, pages
2001. Vol. 14, no 10, 870-874 p.
Keyword [en]
small tunnel-junctions, fabrication
URN: urn:nbn:se:kth:diva-21072ISI: 000171933600011OAI: diva2:339769
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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