Anomalous response of superconducting titanium nitride resonators to terahertz radiation

E. F. C. Driessen; G. Zheng; J. Bueno; J. J. A Baselmans; P. C. J. J. Coumou; P. J. de Visser; S. Doyle; T. M. Klapwijk

REVIEW

Anomalous response of superconducting titanium nitride resonators to terahertz radiation

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1408.0270 v2 pith:TH33ZIU5 submitted 2014-08-01 cond-mat.supr-con

J. Bueno , P. C. J. J. Coumou , G. Zheng , P. J. de Visser , T. M. Klapwijk , E. F. C. Driessen , S. Doyle , J. J. A Baselmans This is my paper

classification cond-mat.supr-con

keywords radiationkidsall-alfoundhybridnbtinnitridenoise

verification ladder T0 review T1 audit T2 compute T3 formal

0 comments

abstract

We present an experimental study of KIDs fabricated of atomic layer deposited TiN films, and characterized at radiation frequencies of $350$~GHz. The responsivity to radiation is measured and found to increase with increasing radiation powers, opposite to what is expected from theory and observed for hybrid niobium titanium nitride / aluminium (NbTiN/Al) and all-aluminium (all-Al) KIDs. The noise is found to be independent of the level of the radiation power. The noise equivalent power (NEP) improves with higher radiation powers, also opposite to what is observed and well understood for hybrid NbTiN/Al and all-Al KIDs. We suggest that an inhomogeneous state of these disordered superconductors should be used to explain these observations.

Discussion (0). Sign in to comment.

Pith tools