Parity effect in Al and Nb single electron transistors in a tunable environment

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© 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at http://scitation.aip.org/content/aip/journal/apl/91/6/10.1063/1.2768897
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Journal Title

Journal ISSN

Volume Title

School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Authors

Savin, A. M.
Meschke, M.
Pekola, Jukka P.
Pashkin, Yu. A.
Li, T. F.
Im, H.
Tsai, J. S.

Date

2007

Major/Subject

Mcode

Degree programme

Language

en

Pages

063512/1-3

Series

Applied Physics Letters, Volume 91, Issue 6

Abstract

Two different types of Cooper pair transistors, with Al and Nb islands, have been investigated in a tunable electromagnetic environment. The device with an Al island demonstrates gate charge modulation with 2e periodicity in a wide range of environmental impedances at bath temperatures below 340mK. Contrary to the results of the Al sample, the authors were not able to detect 2e periodicity under any conditions on similar samples with Nb island. The authors attribute this to the material properties of Nb.

Description

Keywords

niobium, collective excitations, Josephson junctions, superconducting quantum interference devices, material properties

Other note

Citation

Savin, A. M. & Meschke, M. & Pekola, Jukka & Pashkin, Yu. A. & Li, T. F. & Im, H. & Tsai, J. S. 2007. Parity effect in Al and Nb single electron transistors in a tunable environment. Applied Physics Letters. Volume 91, Issue 6. P. 063512/1-3. ISSN 0003-6951 (printed). DOI: 10.1063/1.2768897.