UGC Approved Journal no 63975(19)

ISSN: 2349-5162 | ESTD Year : 2014
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Published in:

Volume 3 Issue 6
June-2016
eISSN: 2349-5162

UGC and ISSN approved 7.95 impact factor UGC Approved Journal no 63975

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Published Paper ID:
JETIR1701126


Registration ID:
222171

Page Number

546-550

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Title

Dynamic Excitation Modes of Couples Electron-Hole Quantum-Well Structure

Abstract

We have theoretically investigated the role of many-body correlations in determining the dynamic excitation modes of coupled electron-hole quantum-well structure over a wide range of particle number density and well spacing d. The intra-and interwell correlations are treated on the same footing within the self-consistent dynamic mean-field approximation. The excitation modes of the system are obtained from the calculation of the imaginary part of the frequency and wave vector dependent linear density response function . In addition to the usual single particle excitations, the coupled bilayer supports two collective excitation modes (plasmons), namely, the in-phase and out-of-phase modes. The in-phase mode is strongly affected by manybody correlations. As an interesting result, we find that exhibits, in the sufficiently close approach of two wells, a strong peak at small at finite q. The appearance of this strong peak in indicates that it costs relatively very little energy to excite the system into a density-moduled state of wave vector q. This new peak in could possibly be used as an experimental probe to detect the existence of a density-moduled ground state in the coupled electron-hole quantum-well system.

Key Words

Quantum well, number density, plasmons

Cite This Article

"Dynamic Excitation Modes of Couples Electron-Hole Quantum-Well Structure", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.3, Issue 6, page no.546-550, June-2016, Available :http://www.jetir.org/papers/JETIR1701126.pdf

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2349-5162 | Impact Factor 7.95 Calculate by Google Scholar

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 7.95 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Cite This Article

"Dynamic Excitation Modes of Couples Electron-Hole Quantum-Well Structure", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.3, Issue 6, page no. pp546-550, June-2016, Available at : http://www.jetir.org/papers/JETIR1701126.pdf

Publication Details

Published Paper ID: JETIR1701126
Registration ID: 222171
Published In: Volume 3 | Issue 6 | Year June-2016
DOI (Digital Object Identifier):
Page No: 546-550
Country: Muzaffarpur, Bihar, India .
Area: Physics
ISSN Number: 2349-5162
Publisher: IJ Publication


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