Measurement of the Hall dynamo effect during magnetic reconnection in a high-temperature plasma

W. X. Ding; D. L. Brower; D. Craig; B. H. Deng; G. Fiksel; V. Mirnov; S. C. Prager; J. S. Sarff; V. Svidzinski

doi:10.1103/PhysRevLett.93.045002

Measurement of the Hall dynamo effect during magnetic reconnection in a high-temperature plasma

W. X. Ding, D. L. Brower, D. Craig, B. H. Deng, G. Fiksel, V. Mirnov, S. C. Prager, J. S. Sarff, V. Svidzinski

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Abstract

The current density fluctuation and magnetic field fluctuation spatial profile were discussed in a high-temperature plasma by using a fast laser-based Faraday rotation diagnostic. It was observed that these fluctuations had characteristics consistent with expectations for resistive tearing modes. The Hall dynamo effect was found to be significant, redistributing (flattening) the equilibrium core current near the resonant surface during a reconnection event. The results suggested that the effects beyond single-fluid magnetohydrodynamics (MHD) were important for the dynamo and magnetic reconnection.

Original language	English (US)
Article number	045002
Pages (from-to)	045002-1-045002-4
Journal	Physical review letters
Volume	93
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.93.045002
State	Published - Jul 23 2004

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.93.045002

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title = "Measurement of the Hall dynamo effect during magnetic reconnection in a high-temperature plasma",

abstract = "The current density fluctuation and magnetic field fluctuation spatial profile were discussed in a high-temperature plasma by using a fast laser-based Faraday rotation diagnostic. It was observed that these fluctuations had characteristics consistent with expectations for resistive tearing modes. The Hall dynamo effect was found to be significant, redistributing (flattening) the equilibrium core current near the resonant surface during a reconnection event. The results suggested that the effects beyond single-fluid magnetohydrodynamics (MHD) were important for the dynamo and magnetic reconnection.",

author = "Ding, {W. X.} and Brower, {D. L.} and D. Craig and Deng, {B. H.} and G. Fiksel and V. Mirnov and Prager, {S. C.} and Sarff, {J. S.} and V. Svidzinski",

note = "Funding Information: This work is supported by the U.S. Department of Energy.",

year = "2004",

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doi = "10.1103/PhysRevLett.93.045002",

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T1 - Measurement of the Hall dynamo effect during magnetic reconnection in a high-temperature plasma

AU - Ding, W. X.

AU - Brower, D. L.

AU - Craig, D.

AU - Deng, B. H.

AU - Fiksel, G.

AU - Mirnov, V.

AU - Prager, S. C.

AU - Sarff, J. S.

AU - Svidzinski, V.

N1 - Funding Information: This work is supported by the U.S. Department of Energy.

PY - 2004/7/23

Y1 - 2004/7/23

N2 - The current density fluctuation and magnetic field fluctuation spatial profile were discussed in a high-temperature plasma by using a fast laser-based Faraday rotation diagnostic. It was observed that these fluctuations had characteristics consistent with expectations for resistive tearing modes. The Hall dynamo effect was found to be significant, redistributing (flattening) the equilibrium core current near the resonant surface during a reconnection event. The results suggested that the effects beyond single-fluid magnetohydrodynamics (MHD) were important for the dynamo and magnetic reconnection.

AB - The current density fluctuation and magnetic field fluctuation spatial profile were discussed in a high-temperature plasma by using a fast laser-based Faraday rotation diagnostic. It was observed that these fluctuations had characteristics consistent with expectations for resistive tearing modes. The Hall dynamo effect was found to be significant, redistributing (flattening) the equilibrium core current near the resonant surface during a reconnection event. The results suggested that the effects beyond single-fluid magnetohydrodynamics (MHD) were important for the dynamo and magnetic reconnection.

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DO - 10.1103/PhysRevLett.93.045002

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JO - Physical review letters

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Measurement of the Hall dynamo effect during magnetic reconnection in a high-temperature plasma

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