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Non-Fourier Electromagnetics of Magnetized Media

  • A. B. Shvartsburg

Abstract

The goal of this chapter is to develop the theory of nonstationary EM fields in stationary magnetized media. In discussing radiophysical phenomena, we must keep in mind that the smallest time scales of continuous media produced by the extremal magnetic field Ho belong to the radio-frequency range. Evaluating these scales T via the period of the gyrofrequency of the carriers with electric charge e and mass m,
$$\omega H = \frac{{\left| e \right|{{H}_{0}}}}{{mc}}$$
(2.1)
and considering the largest available manmade fields (H∞105Gs),one can find for the free electron that \(T \propto \omega _{H}^{{ - 1}} \approx {{10}^{{ - 12}}}\) sec. Using light carriers in semiconductors, e.g., in InSb, is known to decrease T down to 10-13 sec (Zeeger, 1973). However, these times scales are smaller than those for single-cycle optical waveforms, and thus the analysis below is restricted by propagation of nonsinusoidal EM waveforms in the radio diapason—from LF fields in space plasma up to microwaves in ferrites and ferromagnetics.

Keywords

Spin Wave Characteristic Time Scale Extraordinary Wave Magnetic Flux Tube Alfvenic Wave 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1999

Authors and Affiliations

  • A. B. Shvartsburg
    • 1
  1. 1.Central Design Bureau for Unique InstrumentationRussian Academy of SciencesMoscowRussia

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