Experimental investigation of hybrid single-electron turnstiles with high charging energy

Kemppinen, A.; Kafanov, S.; Pashkin, Yu. A.; Tsai, J. S.; Averin, D. V.; Pekola, Jukka P.

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Experimental investigation of hybrid single-electron turnstiles with high charging energy

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Title:	Experimental investigation of hybrid single-electron turnstiles with high charging energy
Author(s):	Kemppinen, A. ; Kafanov, S. ; Pashkin, Yu. A. ; Tsai, J. S. ; Averin, D. V. ; Pekola, Jukka P.
Date:	2009
Language:	en
Pages:	172108/1-3
Department:	Department of Applied Physics Teknillisen fysiikan laitos
Series:	Applied Physics Letters, Volume 94, Issue 17
ISSN:	0003-6951 (printed)
DOI-number:	10.1063/1.3127229
Subject:	Physics
Keywords:	single-electron turnstile, high charging energy, tunneling, Andreev reflection, charged currents, superconductivity, amplifiers
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Citation: Kemppinen, A. & Kafanov, S. & Pashkin, Yu. A. & Tsai, J. S. & Averin, D. V. & Pekola, Jukka. 2009. Experimental investigation of hybrid single-electron turnstiles with high charging energy. Applied Physics Letters. Volume 94, Issue 17. P. 172108/1-3. ISSN 0003-6951 (printed). DOI: 10.1063/1.3127229.
Abstract: We present an experimental study of hybrid turnstiles with high charging energies in comparison to the superconducting gap. The device is modeled with the sequential tunneling approximation. The backtunneling effect is shown to limit the amplitude of the gate drive and thereby the maximum pumped current of the turnstile. We compare results obtained with sine and square wave drive and show how a fast rise time can suppress errors due to leakage current. Quantized current plateaus up to 160 pA are demonstrated.
Rights: © 2009 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/94/17/10.1063/1.3127229
Permanent link to this item: http://urn.fi/URN:NBN:fi:aalto-201505192751 Email this Export to RefWorks QR Code Print BibTex Tweet

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