### 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 ω_{c} and (ii) it also contains a series of kink like structures at the band edges.

Original language | English |
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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 |

Publication status | Published - May 27 1996 |

Externally published | Yes |

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### ASJC Scopus subject areas

- Physics and Astronomy(all)

### Cite this

*Physics Letters, Section A: General, Atomic and Solid State Physics*,

*215*(1-2), 86-90.

**Electron-hole pair excitation in a magneto-quantum plasma under a one-dimensional periodic potential.** / Stewart, S. M.; Zhang, C.

Research output: Contribution to journal › Article

*Physics Letters, Section A: General, Atomic and Solid State Physics*, vol. 215, no. 1-2, pp. 86-90.

}

TY - JOUR

T1 - Electron-hole pair excitation in a magneto-quantum plasma under a one-dimensional periodic potential

AU - Stewart, S. M.

AU - Zhang, C.

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.

UR - http://www.scopus.com/inward/record.url?scp=30244496803&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=30244496803&partnerID=8YFLogxK

M3 - Article

VL - 215

SP - 86

EP - 90

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

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

SN - 0375-9601

IS - 1-2

ER -