Výsledky vyhledávání - "Chesca, Boris"

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The influence of magnetic vortices motion on the inverse ac Josephson effect in asymmetric arrays

Autor: Chesca, Boris, Gaifullin, Marat, John, Daniel, Cox, Jonathan, Savelev, Sergey, Mellor, Christopher

Publikováno v: Appl. Phys. Lett. 121, 162601 (2022)

We report on the influence a preferential magnetic vortices motion has on the magnitude of the inverse ac Josephson effect (the appearance of dc current Shapiro steps) and the coherent operation of asymmetrical parallel arrays of YBaCuO Josephson jun

Externí odkaz: http://arxiv.org/abs/2209.08998

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Parametric amplification of electromagnetic waves produced by a flux-flow-oscillator made of YBaCuO Josephson junction arrays

Autor: Chesca, Boris, John, Daniel, Gaifullin, Marat

Publikováno v: Appl. Phys. Lett. 121, 182601 (2022)

We observe parametric amplification of electromagnetic (EM) waves produced by a flux-flow oscillator made of YBa2Cu3O7 Josephson junctions arrays coupled to the resonant modes of a millimeter wave Fabry-Perot resonator at a pump frequency fP=45 GHz.

Externí odkaz: http://arxiv.org/abs/2209.06198

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Amplification of electromagnetic waves excited by a chain of propagating magnetic vortices in YBaCuO Josephson-junction arrays at 77K and above

Autor: Chesca, Boris, John, Daniel, Mellor, Christopher J.

Publikováno v: Supercond. Sci. Technol. Vol.27, Page 085015, 2014

When a soliton propagates in a discrete lattice it excites small-amplitude linear waves in its wake. In a dc current-biased Josephson-junction (JJ) array these manifest as electromagnetic (EM) waves excited by a (magnetic field induced) chain of prop

Externí odkaz: http://arxiv.org/abs/1401.6222

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