Anomalous modulation of Josephson radiation in nanowire-based Josephson junctions

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Anomalous modulation of Josephson radiation in nanowire-based Josephson junctions. / Kamata, H.; Deacon, R. S.; Matsuo, S.; Li, K.; Jeppesen, S.; Samuelson, L.; Xu, H. Q.; Ishibashi, K.; Tarucha, S.

I: Physical Review B, Vol. 98, Nr. 4, 041302, 19.07.2018.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Harvard

Kamata, H, Deacon, RS, Matsuo, S, Li, K, Jeppesen, S, Samuelson, L, Xu, HQ, Ishibashi, K & Tarucha, S 2018, 'Anomalous modulation of Josephson radiation in nanowire-based Josephson junctions', Physical Review B, vol. 98, nr. 4, 041302. https://doi.org/10.1103/PhysRevB.98.041302

APA

Kamata, H., Deacon, R. S., Matsuo, S., Li, K., Jeppesen, S., Samuelson, L., ... Tarucha, S. (2018). Anomalous modulation of Josephson radiation in nanowire-based Josephson junctions. Physical Review B, 98(4), [041302]. https://doi.org/10.1103/PhysRevB.98.041302

CBE

MLA

Vancouver

Author

Kamata, H. ; Deacon, R. S. ; Matsuo, S. ; Li, K. ; Jeppesen, S. ; Samuelson, L. ; Xu, H. Q. ; Ishibashi, K. ; Tarucha, S. / Anomalous modulation of Josephson radiation in nanowire-based Josephson junctions. I: Physical Review B. 2018 ; Vol. 98, Nr. 4.

RIS

TY - JOUR

T1 - Anomalous modulation of Josephson radiation in nanowire-based Josephson junctions

AU - Kamata, H.

AU - Deacon, R. S.

AU - Matsuo, S.

AU - Li, K.

AU - Jeppesen, S.

AU - Samuelson, L.

AU - Xu, H. Q.

AU - Ishibashi, K.

AU - Tarucha, S.

PY - 2018/7/19

Y1 - 2018/7/19

N2 - We investigate the Josephson radiation of nanowire (NW)-based Josephson junctions in a parallel magnetic field. The Josephson junction made of an InAs NW with superconducting Al leads shows the emission spectra which follow the Josephson frequency over the range 4-8 GHz at zero magnetic field. We observe an apparent deviation of the emission spectra from the Josephson frequency which is accompanied by a strong enhancement of the switching current above a magnetic field of ∼300 mT. The observed modulations can be understood to reflect trivial changes in the superconducting circuit surrounding the device which is strongly affected by the applied magnetic field. Our findings will provide a way to accurately investigate topological properties in NW-based systems.

AB - We investigate the Josephson radiation of nanowire (NW)-based Josephson junctions in a parallel magnetic field. The Josephson junction made of an InAs NW with superconducting Al leads shows the emission spectra which follow the Josephson frequency over the range 4-8 GHz at zero magnetic field. We observe an apparent deviation of the emission spectra from the Josephson frequency which is accompanied by a strong enhancement of the switching current above a magnetic field of ∼300 mT. The observed modulations can be understood to reflect trivial changes in the superconducting circuit surrounding the device which is strongly affected by the applied magnetic field. Our findings will provide a way to accurately investigate topological properties in NW-based systems.

UR - http://www.scopus.com/inward/record.url?scp=85050458303&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.98.041302

DO - 10.1103/PhysRevB.98.041302

M3 - Article

VL - 98

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

SN - 1550-235X

IS - 4

M1 - 041302

ER -