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Circularly polarized modes in magnetized spin plasmas
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics. (Institut für Theoretische Physik IV, Fakultät für Physik and Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany)
2010 (English)In: Journal of Plasma Physics, ISSN 0022-3778, E-ISSN 1469-7807, ISSN 0022-3778, Vol. 76, no 3/4, 857-864 p.Article in journal (Refereed) Published
Abstract [en]

The influence of the intrinsic spin of electrons on the propagation of circularly polarized waves in a magnetized plasma is considered. New eigenmodes are identified, one of which propagates below the electron cyclotron frequency, one above the spin-precession frequency, and another close to the spin-precession frequency. The latter corresponds to the spin modes in ferromagnets under certain conditions. In the non-relativistic motion of electrons, the spin effects become noticeable even when the external magnetic field B0 is below the quantum critical magnetic field strength, i.e. B0 < BQ = 4.4138 × 109T and the electron density satisfies n0nc ≃ 1032m−3. The importance of electron spin (paramagnetic) resonance (ESR) for plasma diagnostics is discussed.

Place, publisher, year, edition, pages
2010. Vol. 76, no 3/4, 857-864 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-38735DOI: 10.1017/S0022377810000450ISI: 000284043700007OAI: oai:DiVA.org:umu-38735DiVA: diva2:381324
Funder
Swedish Research Council
Available from: 2010-12-27 Created: 2010-12-27 Last updated: 2011-10-10Bibliographically approved

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Publisher's full texthttp://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=7918970http://arxiv.org/abs/1006.4878

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Misra, Amar PBrodin, GertMarklund, MattiasShukla, Padma K

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