Normal metal tunnel junction-based superconducting quantum interference proximity transistor

Sophie D'Ambrosio (Corresponding Author), Martin Meissner, Christophe Blanc, Alberto Ronzani, Francesco Giazotto (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

16 Citations (Scopus)

Abstract

We report the fabrication and characterization of an alternative design for a superconducting quantum interference proximity transistor (SQUIPT) based on a normal metal (N) probe. The absence of direct Josephson coupling between the proximized metal nanowire and the N probe allows us to observe the full modulation of the wire density of states around zero voltage and current via the application of an external magnetic field. This results into a drastic suppression of power dissipation which can be as low as a few ∼10-17 W. In this context, the interferometer allows an improvement of up to four orders of magnitude with respect to earlier SQUIPT designs and makes it ideal for extra-low power cryogenic applications. In addition, the N-SQUIPT has been recently predicted to be the enabling candidate for the implementation of coherent caloritronic devices based on proximity effect.

Original languageEnglish
Article number113110
JournalApplied Physics Letters
Volume107
Issue number11
DOIs
Publication statusPublished - 14 Sep 2015
MoE publication typeA1 Journal article-refereed

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tunnel junctions
proximity
transistors
interference
metals
probes
cryogenics
nanowires
dissipation
interferometers
retarding
wire
modulation
fabrication
electric potential
magnetic fields

Cite this

D'Ambrosio, Sophie ; Meissner, Martin ; Blanc, Christophe ; Ronzani, Alberto ; Giazotto, Francesco. / Normal metal tunnel junction-based superconducting quantum interference proximity transistor. In: Applied Physics Letters. 2015 ; Vol. 107, No. 11.
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Normal metal tunnel junction-based superconducting quantum interference proximity transistor. / D'Ambrosio, Sophie (Corresponding Author); Meissner, Martin; Blanc, Christophe; Ronzani, Alberto; Giazotto, Francesco (Corresponding Author).

In: Applied Physics Letters, Vol. 107, No. 11, 113110, 14.09.2015.

Research output: Contribution to journalArticleScientificpeer-review

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