TY  - JOUR
AU  - Peltonen, J. T.
AU  - Astafiev, O. V.
AU  - Korneeva, Y. P.
AU  - Voronov, B. M.
AU  - Korneev, A. A.
AU  - Charaev, I. M.
AU  - Semenov, A. V.
AU  - Golt'sman, G. N.
AU  - Ioffe, L. B.
AU  - Klapwijk, T. M.
AU  - Tsai, J. S.
PY  - 2013
DA  - 2013//
TI  - Coherent flux tunneling through NbN nanowires
T2  - Phys. Rev. B
JO  - Phys. Rev. B
SP  - 220506 (1 to 5)
VL  - 88
IS  - 22
KW  - NbN nanowires
AB  - We demonstrate evidence of coherent magnetic flux tunneling through superconducting nanowires patterned in a thin highly disordered NbN film. The phenomenon is revealed as a superposition of flux states in a fully metallic superconducting loop with the nanowire acting as an effective tunnel barrier for the magnetic flux, and reproducibly observed in different wires. The flux superposition achieved in the fully metallic NbN rings proves the universality of the phenomenon previously reported for InOx. We perform microwave spectroscopy and study the tunneling amplitude as a function of the wire width, compare the experimental results with theories, and estimate the parameters for existing theoretical models.
SN  - 1098-0121
UR  - https://link.aps.org/doi/10.1103/PhysRevB.88.220506
UR  - https://doi.org/10.1103/PhysRevB.88.220506
DO  - 10.1103/PhysRevB.88.220506
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1369), last updated on Thu, 13 May 2021 14:31:07 -0500
ID  - Peltonen_etal2013
ER  -