Electron-hole pair excitation in a magneto-quantum plasma under a one-dimensional periodic potential

S. M. Stewart; C. Zhang

doi:10.1016/0375-9601(96)00220-4

Electron-hole pair excitation in a magneto-quantum plasma under a one-dimensional periodic potential

S. M. Stewart, C. Zhang

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We have calculated the frequency dependent dielectric response function for a quantum plasma under a constant magnetic field and a one-dimensional periodic modulation potential. It is found that the original inverse square root divergence in the density of states is removed by the modulation potential while periodic finite peaks and sudden steps are introduced. The electron-hole excitation exhibits two new features due to the periodic modulation, (i) the excitation contains double peaks at ω around ωc and (ii) it also contains a series of kink like structures at the band edges.

Original language	English (US)
Pages (from-to)	86-90
Number of pages	5
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	215
Issue number	1-2
DOIs	https://doi.org/10.1016/0375-9601(96)00220-4
State	Published - May 27 1996
Externally published	Yes

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Generated from Scopus record by KAUST IRTS on 2022-09-15

ASJC Scopus subject areas

General Physics and Astronomy

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10.1016/0375-9601(96)00220-4

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abstract = "We have calculated the frequency dependent dielectric response function for a quantum plasma under a constant magnetic field and a one-dimensional periodic modulation potential. It is found that the original inverse square root divergence in the density of states is removed by the modulation potential while periodic finite peaks and sudden steps are introduced. The electron-hole excitation exhibits two new features due to the periodic modulation, (i) the excitation contains double peaks at ω around ωc and (ii) it also contains a series of kink like structures at the band edges.",

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AU - Zhang, C.

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PY - 1996/5/27

Y1 - 1996/5/27

N2 - We have calculated the frequency dependent dielectric response function for a quantum plasma under a constant magnetic field and a one-dimensional periodic modulation potential. It is found that the original inverse square root divergence in the density of states is removed by the modulation potential while periodic finite peaks and sudden steps are introduced. The electron-hole excitation exhibits two new features due to the periodic modulation, (i) the excitation contains double peaks at ω around ωc and (ii) it also contains a series of kink like structures at the band edges.

AB - We have calculated the frequency dependent dielectric response function for a quantum plasma under a constant magnetic field and a one-dimensional periodic modulation potential. It is found that the original inverse square root divergence in the density of states is removed by the modulation potential while periodic finite peaks and sudden steps are introduced. The electron-hole excitation exhibits two new features due to the periodic modulation, (i) the excitation contains double peaks at ω around ωc and (ii) it also contains a series of kink like structures at the band edges.

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JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 1-2

ER -

Electron-hole pair excitation in a magneto-quantum plasma under a one-dimensional periodic potential

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