Collective excitations in a 2D electron system: Canted field geometry

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The authors investigate the charge and spin collective modes induced in a 2D electron gas by a weak electromagnetic perturbation in the presence of a dc magnetic field which makes an angle {theta} with the electron layer. The excitation frequencies are determined within the framework of the Landau-Silin theory of Fermi liquids by solving a semi-classical equation for transport in the self-consistent electromagnetic field associated with particle density fluctuations. The quasiparticle interaction is spin dependent and varies parametrically with the degree of spin polarization. In the long wavelength limit, they obtain analytic results for the frequencies of the collective modes ... continued below

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7 p.

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Marinescu, D.C.; Quinn, J.J. & Wojs, A. June 1, 1998.

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Description

The authors investigate the charge and spin collective modes induced in a 2D electron gas by a weak electromagnetic perturbation in the presence of a dc magnetic field which makes an angle {theta} with the electron layer. The excitation frequencies are determined within the framework of the Landau-Silin theory of Fermi liquids by solving a semi-classical equation for transport in the self-consistent electromagnetic field associated with particle density fluctuations. The quasiparticle interaction is spin dependent and varies parametrically with the degree of spin polarization. In the long wavelength limit, they obtain analytic results for the frequencies of the collective modes as functions of {theta}.

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7 p.

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OSTI as DE99000359

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  • SemiMag 13 meeting, Nijmegan (Netherlands), 10-14 Aug 1998

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  • Other: DE99000359
  • Report No.: ORNL/CP--98839
  • Report No.: CONF-980850--
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 677112
  • Archival Resource Key: ark:/67531/metadc708284

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  • June 1, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • Nov. 3, 2016, 7:01 p.m.

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Marinescu, D.C.; Quinn, J.J. & Wojs, A. Collective excitations in a 2D electron system: Canted field geometry, article, June 1, 1998; Tennessee. (digital.library.unt.edu/ark:/67531/metadc708284/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.