Non-hysteretic superconducting quantum interference proximity transistor with enhanced responsivity

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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.