Ordinary and extraordinary cyclotron waves in metals

Pushpahasan, A. ; Viswanathan, K. S. (1986) Ordinary and extraordinary cyclotron waves in metals Pramana - Journal of Physics, 26 (6). pp. 543-554. ISSN 0304-4289

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Official URL: http://www.ias.ac.in/j_archive/pramana/26/6/543-55...

Related URL: http://dx.doi.org/10.1007/BF02880913


Dispersion equations for the ordinary and extraordinary cyclotron waves propagating perpendicular to the magnetic field in metals in the critical region where the wavelength is comparable to the electron Larmor radius are derived as an infinite but rapidly converging power series expansion in δ( = ω/Ω-M). Numerical studies for the cyclotron wave propagation near the first seven resonances are carried out. The non-local behaviour of those waves in the critical region 0.1 ≤kR ≤ 3.0 is studied. For the ordinary waves the first few resonances show significant dispersion than those near higher resonances which are dispersion-free. Only one extraordinary wave propagates near the fundamental cyclotron frequency. For the higher resonances, two modes propagate near each of the resonant frequencies, of which one mode remains constant for all values ofkR whereas the second mode shows significant dispersion. But beyond the fifth resonance both the modes are dispersion free.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Cyclotron Resonance; Cyclotron Waves in Metals; Perpendicular Propagation; Ordinary Wave; Extraordinary Wave
ID Code:68488
Deposited On:02 Nov 2011 08:05
Last Modified:18 May 2016 15:17

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