Pair tunneling as a probe of the dynamics of magnetic insulators

Allen M Goldman; C. G. Kuper; Oriol T Valls

doi:10.1103/PhysRevLett.52.1340

Pair tunneling as a probe of the dynamics of magnetic insulators

Allen M Goldman, C. G. Kuper, Oriol T Valls

Physics and Astronomy (Twin Cities)

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

6 Scopus citations

Abstract

A method of using the ac Josephson current between two superconducting electrodes to probe the spin fluctuations of a magnetic insulating barrier of a junction is suggested. The dc I-V characteristic of such a junction measured as a function of both the dc bias voltage V and the magnitude of a magnetic field parallel to the plane of the junction is predicted to be proportional to the imaginary part of the frequency- and wave-vector-dependent susceptibility of the magnetic material.

Original language	English (US)
Pages (from-to)	1340-1343
Number of pages	4
Journal	Physical review letters
Volume	52
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.52.1340
State	Published - 1984

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10.1103/PhysRevLett.52.1340

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title = "Pair tunneling as a probe of the dynamics of magnetic insulators",

abstract = "A method of using the ac Josephson current between two superconducting electrodes to probe the spin fluctuations of a magnetic insulating barrier of a junction is suggested. The dc I-V characteristic of such a junction measured as a function of both the dc bias voltage V and the magnitude of a magnetic field parallel to the plane of the junction is predicted to be proportional to the imaginary part of the frequency- and wave-vector-dependent susceptibility of the magnetic material.",

author = "Goldman, {Allen M} and Kuper, {C. G.} and Valls, {Oriol T}",

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AU - Kuper, C. G.

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AB - A method of using the ac Josephson current between two superconducting electrodes to probe the spin fluctuations of a magnetic insulating barrier of a junction is suggested. The dc I-V characteristic of such a junction measured as a function of both the dc bias voltage V and the magnitude of a magnetic field parallel to the plane of the junction is predicted to be proportional to the imaginary part of the frequency- and wave-vector-dependent susceptibility of the magnetic material.

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JF - Physical review letters

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Pair tunneling as a probe of the dynamics of magnetic insulators

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