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

Antti Kemppinen; S. Kafanow; Y.A. Pashkin; J.S. Tsai; D.V. Averin; J.P. Pekola

doi:10.1063/1.3127229

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

Antti Kemppinen (Corresponding Author), S. Kafanow, Y.A. Pashkin, J.S. Tsai, D.V. Averin, J.P. Pekola

VTT Technical Research Centre of Finland

Research output: Contribution to journal › Article › Scientific › peer-review

35 Citations (Scopus)

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.

Original language	English
Number of pages	3
Journal	Applied Physics Letters
Volume	94
Issue number	17
DOIs	https://doi.org/10.1063/1.3127229
Publication status	Published - 2009
MoE publication type	A1 Journal article-refereed

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10.1063/1.3127229

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title = "Experimental investigation of hybrid single-electron turnstiles with high charging energy",

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.",

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AU - Kemppinen, Antti

AU - Kafanow, S.

AU - Pashkin, Y.A.

AU - Tsai, J.S.

AU - Averin, D.V.

AU - Pekola, J.P.

PY - 2009

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AB - 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.

U2 - 10.1063/1.3127229

DO - 10.1063/1.3127229

M3 - Article

SN - 0003-6951

VL - 94

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 17

ER -

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

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