Non-hysteretic superconducting quantum interference proximity transistor with enhanced responsivity

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© 2014 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/104/8/10.1063/1.4866584

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Journal Title

Journal ISSN

Volume Title

School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2014

Major/Subject

Mcode

Degree programme

Language

en

Pages

082601/1-4

Series

Applied Physics Letters, Volume 104, Issue 8

Abstract

This Letter presents fabrication and characterization of an optimized superconducting quantum interference proximity transistor. The present device, characterized by reduced tunnel junction area and shortened normal-metal section, demonstrates no hysteresis at low temperatures as we increased the Josephson inductance of the weak link by decreasing its cross section. It has consequently almost an order of magnitude improved magnetic field responsivity as compared to the earlier design. The modulation of both the current and the voltage across the junction have been measured as a function of magnetic flux piercing the superconducting loop.

Description

Keywords

Josephson junctions, superconductivity, inductance, magnetic flux, superconducting metals

Other note

Citation

Jabdaraghi, R. N. & Meschke, M. & Pekola, Jukka. 2014. Non-hysteretic superconducting quantum interference proximity transistor with enhanced responsivity. Applied Physics Letters. Volume 104, Issue 8. P. 082601/1-4. ISSN 0003-6951 (printed). DOI: 10.1063/1.4866584.