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X-ray energy spectrum measurements by an annular superconducting tunnel junction with trapped magnetic flux quanta
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10.1063/1.1766396
/content/aip/journal/apl/84/26/10.1063/1.1766396
http://aip.metastore.ingenta.com/content/aip/journal/apl/84/26/10.1063/1.1766396
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Photograph of an annular Al-STJ fabricated on a substrate. The external and internal diameters of the junction area are 100 and , respectively.

Image of FIG. 2.
FIG. 2.

The characteristic of an annular STJ at without trapped magnetic flux quanta and Abrikosov vortices (closed circles). Open circles represent the characteristic after trapping several flux quanta in the hole of the bottom electrode.

Image of FIG. 3.
FIG. 3.

Pulse height spectrum from an Al annular STJ irradiated by a x-ray source. The Josephson critical current and Fiske resonances were suppressed by trapping magnetic flux quanta through the barrier inside one annular electrode. The inset shows a close-up view of the and lines from the top electrode. An energy resolution (FWHM) for the line has been obtained by fitting a Gaussian function (solid curve) to the line.

Image of FIG. 4.
FIG. 4.

Experimental dependence recorded at after measurements of the pulse height spectrum shown in Fig. 3 (closed circles). The solid line is the theoretical dependence [calculated by Eq. (1) from Ref. 4] corresponding to trapped magnetic flux quanta.

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/content/aip/journal/apl/84/26/10.1063/1.1766396
2004-06-17
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: X-ray energy spectrum measurements by an annular superconducting tunnel junction with trapped magnetic flux quanta
http://aip.metastore.ingenta.com/content/aip/journal/apl/84/26/10.1063/1.1766396
10.1063/1.1766396
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