Controlling Josephson dynamics by strong microwave fields

B. Chesca; E. Savel'ev; A.L. Rakhmanov; H.J.H. Smilde; Johannes W.M. Hilgenkamp

doi:10.1103/PhysRevB.78.094505

Controlling Josephson dynamics by strong microwave fields

B. Chesca, E. Savel'ev, A.L. Rakhmanov, H.J.H. Smilde, Johannes W.M. Hilgenkamp

Faculty of Science and Technology

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

We observe several sharp changes in the slope of the current-voltage characteristics (CVCs) of thin-film ramp-edge Josephson junctions between YBa2Cu3O7−delta and Nb when applying strong microwave fields. Such behavior indicates an intriguing Josephson dynamics associated with the switching from a parametric excitation regime induced by the magnetic field of the microwave via oscillations of the Josephson critical current to an ac-current-excitation regime triggered by the electric field of the microwave. We propose a model, which describes the observed features on the CVC in terms of microwave-induced multiple switching between running and locked solutions of sine-Gordon equation.

Original language	Undefined
Pages (from-to)	094505-
Journal	Physical review B: Condensed matter and materials physics
Volume	78
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.78.094505
Publication status	Published - 2008

Keywords

IR-59954
METIS-254345

Access to Document

10.1103/PhysRevB.78.094505

Cite this

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title = "Controlling Josephson dynamics by strong microwave fields",

abstract = "We observe several sharp changes in the slope of the current-voltage characteristics (CVCs) of thin-film ramp-edge Josephson junctions between YBa2Cu3O7−delta and Nb when applying strong microwave fields. Such behavior indicates an intriguing Josephson dynamics associated with the switching from a parametric excitation regime induced by the magnetic field of the microwave via oscillations of the Josephson critical current to an ac-current-excitation regime triggered by the electric field of the microwave. We propose a model, which describes the observed features on the CVC in terms of microwave-induced multiple switching between running and locked solutions of sine-Gordon equation.",

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TY - JOUR

T1 - Controlling Josephson dynamics by strong microwave fields

AU - Chesca, B.

AU - Savel'ev, E.

AU - Rakhmanov, A.L.

AU - Smilde, H.J.H.

AU - Hilgenkamp, Johannes W.M.

PY - 2008

Y1 - 2008

N2 - We observe several sharp changes in the slope of the current-voltage characteristics (CVCs) of thin-film ramp-edge Josephson junctions between YBa2Cu3O7−delta and Nb when applying strong microwave fields. Such behavior indicates an intriguing Josephson dynamics associated with the switching from a parametric excitation regime induced by the magnetic field of the microwave via oscillations of the Josephson critical current to an ac-current-excitation regime triggered by the electric field of the microwave. We propose a model, which describes the observed features on the CVC in terms of microwave-induced multiple switching between running and locked solutions of sine-Gordon equation.

AB - We observe several sharp changes in the slope of the current-voltage characteristics (CVCs) of thin-film ramp-edge Josephson junctions between YBa2Cu3O7−delta and Nb when applying strong microwave fields. Such behavior indicates an intriguing Josephson dynamics associated with the switching from a parametric excitation regime induced by the magnetic field of the microwave via oscillations of the Josephson critical current to an ac-current-excitation regime triggered by the electric field of the microwave. We propose a model, which describes the observed features on the CVC in terms of microwave-induced multiple switching between running and locked solutions of sine-Gordon equation.

KW - IR-59954

KW - METIS-254345

U2 - 10.1103/PhysRevB.78.094505

DO - 10.1103/PhysRevB.78.094505

M3 - Article

SN - 1098-0121

VL - 78

SP - 094505-

JO - Physical review B: Condensed matter and materials physics

JF - Physical review B: Condensed matter and materials physics

IS - 9

ER -