| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Energy Band Structure of the Electron Gas in Periodic Quantum Wells |
| MAO Sheng-Hong, MA Yu-Ting, XUE Ju-Kui** |
| Key Laboratory of Atomic & Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronics Engineering, Northwest Normal University, Lanzhou 730070 |
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| Cite this article: |
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Abstract The energy band structure and current density of electron gas with an exchange-correlation effect in periodic quantum wells are discussed. It is found that the energy band shows a swallowtail structure at the boundary of the first Brillouin zone when the electron exchange-correlation effect is presented and the average electron density is smaller than a critical value. The energy band structure is closely related to the current density of the system.
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Received: 24 April 2012
Published: 31 July 2012
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| PACS: |
73.21.Fg
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(Quantum wells)
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71.10.Ca
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(Electron gas, Fermi gas)
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71.45.Gm
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(Exchange, correlation, dielectric and magnetic response functions, plasmons)
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Abstract
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