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Tuesday, July 28, 2020 | History

2 edition of Doppler-shifted cyclotron resonance in bismuth found in the catalog.

Doppler-shifted cyclotron resonance in bismuth

Jordan Kirsch

Doppler-shifted cyclotron resonance in bismuth

by Jordan Kirsch

  • 336 Want to read
  • 37 Currently reading

Published by s.n.] in [New York .
Written in English

    Subjects:
  • Cyclotron resonance.,
  • Doppler effect.,
  • Bismuth -- Magnetic properties.,
  • Bismuth -- Effect of radiation on.

  • Edition Notes

    StatementJordan Kirsch.
    Classifications
    LC ClassificationsQC437 .K547
    The Physical Object
    Paginationi, 73 leaves :
    Number of Pages73
    ID Numbers
    Open LibraryOL5235428M
    LC Control Number75306033

    This process involves a Doppler‐shifted cyclotron resonance interaction between the free‐space R‐X mode and the auroral electrons. The most recent data, from the Viking satellite, indicate that the free‐energy source driving the instability is produced by electrons trapped by the magnetic mirror force and the electric field response for. of Bismuth in Lead (Anderson) 3 6. dHvA Oscillations in Cobalt Spheres (Anderson) 3 I 7. Energy Bands in Vanadium at Normal and Reduced Lattice Spacings (Anderson) 3 8. Helicons, Doppler-Shifted Cyclotron Resonance, and Gantmakher-Kaner Oscillations (Falk) 4 9. rf Surface Impedance in the Presence of Mag-.

    Hybrid resonance and tilted-orbit cyclotron resonance in bismuth (Monograph) [S. J Buchsbaum] on *FREE* shipping on qualifying : S. J Buchsbaum.   Therefore, the dispersion relation possesses the root q2 â 3 at h3 1. Since this root is associated with the Doppler-shifted cyclotron resonance, the corresponding mode can be referred to as the doppleron. Vol. 45 No. 10 It is signiï¬ cant that both roots lie in the range q2 > 1, which corresponds to cyclotron absorption.

    Buy Physical Book Learn about institutional subscriptions. Papers Table of contents ( Magnetoresistance of Bismuth. A. M. Forrest, A. C. Hollis Hallett. Pages Doppler-Shifted Cyclotron Resonance with Helicon Waves. M. T. Taylor. Electron Cyclotron Resonance Ion Sources and ECR Plasmas Geller, R Acknowledged as the "founding father" of and world renowned expert on electron cyclotron resonance sources Richard Geller has produced a unique book devoted to the physics and technicalities of electron cyclotron resonance sources.


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Doppler-shifted cyclotron resonance in bismuth by Jordan Kirsch Download PDF EPUB FB2

Therefore, in a dc magnetic field perpendicular to the metal surface the cyclotron resonance is shifted into the frequency range which extends from a few kilohertzs up to a few gigahertz. Unlike the Azbel'-Kaner cyclotron resonance, which is temporal, the Doppler-shifted cyclotron resonance (DSCR) is a spatial by: 7.

Abstract. Cyclotron resonance, with the static magnetic field normal to the surface of the metal, has been performed at frequencies several thousand times smaller than the electron cyclotron frequency, ω c = eB/ low frequency at which resonance occurs (9 Mcps with a field of 23 kG for sodium) arises from the Doppler effect and the large difference between the Fermi Cited by: 3.

The kink has been identified as a Doppler-shifted cyclotron resonance whose position is approximately given by the formula ω=ω c-v 0x k A where v 0x is the Doppler-shifted cyclotron resonance in bismuth book Fermi velocity along the field and k A is the wave number of the microwaves in the metal.

The kink marks the onset of Alfvén wave behavior where the surface resistance is Cited by: If a magnetic field is applied normal to the slab, the wave number and frequency dependent conductivity consists of a series of resonant terms.

The resonances occur at the Doppler-shifted cyclotron resonance frequencies |ω c | = ω ± p(ℏ m) (π d) 2 where l = 1, 2, 3. It is shown that these resonances in the conductivity result in an Author: J. Cochran, Robert Turner. The Doppler-shifted cyclotron resonance in an aluminum plate in the geometry when constant magnetic field H is directed along the [] crystallographic axis oriented normally to.

The surface resistance of thin monocrystalline W plates as a function of the constant magnetic field H directed along the normal to the sample surface is studied in the r.f.

spectrum region. The sample surface was cleaned in high vaccum ( torr) or coated with the monomolecular impurity film. The oscillating with the magnetic field part R osc due to the Doppler-shifted cyclotron resonance. Doppler-Shifted Cyclotron Resonance and Alfvén Wave Damping in Bismuth Kirsch, Jordan; Miller, P.

Abstract. Publication: Physical Review Letters. Pub Date: November DOI: /PhysRevLett Bibcode: PhRvL K full text sources.

modes, propagated in a bismuth single crystal in a magnetic field lying in the basal plane of the crys­ tal. The Doppler-shifted cyclotron resonance was observed in the form of a strong resonance damp­ ing of the magnetoplasma waves due to the inter­ action of the waves with carriers whose Larmor frequency was equal to the Doppler frequency of.

Preliminary work on cyclotron resonance in bismuth reported earlier (2) has been extended in order to check the detailed form proposed for the electron energy band, and to look for evidence of resonances from the holes.

At high fields (H ⩾ G), the surface resistance, R, is found to pass through a minimum, and then to increase with departure from the monotonically. The book describes the main theoretical and experimental methods for determining the shape of the Fermi surface of a metal. Doppler-shifted cyclotron resonance in.

Doppler shifted cyclotron absorption of the magnetoplasma resonance for the fundamental of a mm thick sodium plate. The graph is essentially a plot of the height of the resonance versus magnetic field.

The theoretical curves are for kl ~. These waves could cause effective electron diffusion if they satisfy the Doppler‐shifted cyclotron resonance condition which can be written as (1) where ω is the wave frequency, Ω q is the cyclotron frequency for each species q, n is the harmonic number, k ∥ and v ∥ are the k vector and particle velocity parallel to the background.

times greater than that in bismuth and, in strong the mode related to the Doppler-shifted cyclotron resonance of electrons, becomes possible.

The book. Doppler shifted cyclotron resonance in antimony 47 From Eq. (4) it follows that the resonances will be periodic in 1/B in all these three kinds of resonances.

ACR could be distin- guished from BER or DSR if the resonance effect is studied for different directions of. Resonant hot electrons from the ring current population can cause amplification of existing waves or can be the source mechanism which generates waves in the whistler mode.

The predominant interaction is Doppler shifted cyclotron resonance. Nonlinear helicon-phonon resonance in bismuth. Book. Jan ; Doppler-shifted cyclotron resonance in indium. Article. Nov ; Doppler shifted cyclotron resonance and electromagnetic waves. Doppler-shifted cyclotron resonance in metals.

The excitation of these modes in the bismuth plate results in the fact that the dependence of the impedance of the plate on the magnetic field. We study the heavy ion acceleration due to cyclotron interaction with both right‐ and left‐hand polarized MHD waves propagating along the magnetic field in.

@article{osti_, title = {Doppler-shifted resonance absorption by hot electrons}, author = {Shearer, J W}, abstractNote = {When the large Doppler shifts of hot-electron-ring ECRH absorption are taken into account, the spatial location of the bulk of the energy absorption can be significantly shifted from the cold-plasma resonance region.

The Doppler-shifted cyclotron angular frequency, say, with the help of (), may be written as Therefore, taking the differential of () one can express the incremental change in as: The two terms in the right-hand side of () tend to cancel each other thereby making, which points towards the phenomenon of 'auto-resonance' in the device.

We have previously reported the reversible resistance switching in bismuth titanate (BiTiO) thin films deposited by electron cyclotron resonance (ECR) sputtering. 34) Similar bistable resistive switching behaviors were obtained by sol-gel derived BiTiO films.

35) However, switching mechanism in BiTiO film has yet to be clarified. The aim of.[9] At Doppler shifted cyclotron resonance ω = nΩ + k z v z1, the resonant interaction terms (for electrons with v z0 ∼ v z1), in the trajectory functions to, dominate all others representing the non‐resonant interactions, where v z1 = (ω ∼ nΩ)/k z is the harmonic cyclotron shifted wave phase velocity along the magnetic field.

Thus.Artificial dissipation in the form of a bi‐Laplacian operator is used to suppress numerical instabilities, allowing for a clear separation of the dissipative scales from the ion cyclotron scales.

A distinct steepening appears in the simulation power spectra near the cyclotron resonance for certain types of initial conditions.