Theory and experiment on electromagnetic-wave-propagation velocities in stacked superconducting tunnel structures

S. Sakai; A. V. Ustinov; H. Kohlstedt; Antonio Petraglia; Niels Falsig Pedersen

doi:10.1103/PhysRevB.50.12905

Theory and experiment on electromagnetic-wave-propagation velocities in stacked superconducting tunnel structures

S. Sakai, A. V. Ustinov, H. Kohlstedt, Antonio Petraglia, Niels Falsig Pedersen

Department of Physics

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Abstract

Characteristic velocities of the electromagnetic waves propagating in vertically stacked Josephson transmission are theoretically discussed. An equation for solving n velocities of the waves in an n Josephson-junction stack is derived. The solutions of two- and threefold stacks are especially focused on. Furthermore, under the assumption that all parameters of the layers are equal, analytic solutions for a generic N-fold stack are presented. The velocities of the waves in two- and three-junction stacks by Nb-Al-AlOx-Nb systems are experimentally obtained by measuring the cavity resonance (Fiske step) modes. Comparison of the theory with the experimental data reveals good quantitative agreement.

Original language	English
Journal	Physical Review B
Volume	50
Issue number	17
Pages (from-to)	12905-12914
ISSN	2469-9950
DOIs	https://doi.org/10.1103/PhysRevB.50.12905
Publication status	Published - 1994

Bibliographical note

Copyright (1994) by the American Physical Society.

Keywords

JOSEPHSON-JUNCTIONS
SUPERLATTICES

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SakaiFinal published version, 1.32 MB

http://link.aps.org/doi/10.1103/PhysRevB.50.12905

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title = "Theory and experiment on electromagnetic-wave-propagation velocities in stacked superconducting tunnel structures",

abstract = "Characteristic velocities of the electromagnetic waves propagating in vertically stacked Josephson transmission are theoretically discussed. An equation for solving n velocities of the waves in an n Josephson-junction stack is derived. The solutions of two- and threefold stacks are especially focused on. Furthermore, under the assumption that all parameters of the layers are equal, analytic solutions for a generic N-fold stack are presented. The velocities of the waves in two- and three-junction stacks by Nb-Al-AlOx-Nb systems are experimentally obtained by measuring the cavity resonance (Fiske step) modes. Comparison of the theory with the experimental data reveals good quantitative agreement.",

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author = "S. Sakai and Ustinov, {A. V.} and H. Kohlstedt and Antonio Petraglia and Pedersen, {Niels Falsig}",

note = "Copyright (1994) by the American Physical Society.",

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doi = "10.1103/PhysRevB.50.12905",

language = "English",

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T1 - Theory and experiment on electromagnetic-wave-propagation velocities in stacked superconducting tunnel structures

AU - Sakai, S.

AU - Ustinov, A. V.

AU - Kohlstedt, H.

AU - Petraglia, Antonio

AU - Pedersen, Niels Falsig

PY - 1994

Y1 - 1994

N2 - Characteristic velocities of the electromagnetic waves propagating in vertically stacked Josephson transmission are theoretically discussed. An equation for solving n velocities of the waves in an n Josephson-junction stack is derived. The solutions of two- and threefold stacks are especially focused on. Furthermore, under the assumption that all parameters of the layers are equal, analytic solutions for a generic N-fold stack are presented. The velocities of the waves in two- and three-junction stacks by Nb-Al-AlOx-Nb systems are experimentally obtained by measuring the cavity resonance (Fiske step) modes. Comparison of the theory with the experimental data reveals good quantitative agreement.

AB - Characteristic velocities of the electromagnetic waves propagating in vertically stacked Josephson transmission are theoretically discussed. An equation for solving n velocities of the waves in an n Josephson-junction stack is derived. The solutions of two- and threefold stacks are especially focused on. Furthermore, under the assumption that all parameters of the layers are equal, analytic solutions for a generic N-fold stack are presented. The velocities of the waves in two- and three-junction stacks by Nb-Al-AlOx-Nb systems are experimentally obtained by measuring the cavity resonance (Fiske step) modes. Comparison of the theory with the experimental data reveals good quantitative agreement.

KW - JOSEPHSON-JUNCTIONS

KW - SUPERLATTICES

U2 - 10.1103/PhysRevB.50.12905

DO - 10.1103/PhysRevB.50.12905

M3 - Journal article

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EP - 12914

JO - Physical Review B (Condensed Matter and Materials Physics)

JF - Physical Review B (Condensed Matter and Materials Physics)

SN - 1098-0121

IS - 17

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