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Parity effect in superconducting aluminum single electron transistors with spatial gap profile controlled by film thickness
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10.1063/1.2207555
/content/aip/journal/apl/88/21/10.1063/1.2207555
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/21/10.1063/1.2207555

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic diagram of the energy bands of the charge qubit as a function of . Dashed lines represent the energy bands for the odd-parity state. (b) Spatial superconducting gap profile, which is favorable for the QP-poisoning-free SET device. (c) Scanning electron micrograph of the SET sample, whose island and leads are 10 and thick, respectively. The gate electrode is not seen in this picture.

Image of FIG. 2.
FIG. 2.

(a) Intensity plot of as functions of and . The device has thick island and thick leads. (b) Observed superconducting energy gap of Al as a function of the film thickness.

Image of FIG. 3.
FIG. 3.

curves at different gate voltages for (a) the sample a and (b) the sample . Each curve is offset by for clarity. (c) Gate charge dependence of the switching current for all the measured samples. Note that random offset charges have not been subtracted.

Tables

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Table I.

Sample parameters of large ratio samples.

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/content/aip/journal/apl/88/21/10.1063/1.2207555
2006-05-25
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Parity effect in superconducting aluminum single electron transistors with spatial gap profile controlled by film thickness
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/21/10.1063/1.2207555
10.1063/1.2207555
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