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題 名 | Variational Hartree-Fock Ground-State Energy for a Two-Dimensional Wigner Crystal Induced by a Strong Magnetic Field |
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作 者 | Cheng,Szu-cheng; | 書刊名 | Chinese Journal of Physics |
卷 期 | 35:6(Part1) 民86.12 |
頁 次 | 頁718-732 |
分類號 | 337 |
關鍵詞 | 磁場; |
語 文 | 英文(English) |
英文摘要 | We study the variational Hartree-Fock ground-state energy for a two- dimensional Wigner crystal induced by a strong magnetic field in the fractional quantum Hall effect regime. Effects of inter-Landau-level mixing on the total energy are considered. Exchange energies from inter-Landau level mixing are estimated. Our results show that the exchange effect from Landau-level mixing is not small. It has the same order of magnitude of lowering the Wigner crystal energy as the correlation effect from Landau-level mixing does. If both effects are considered, the Wigner crystal state is more stable than the incompressible fluid state in the low density or large effective mass regime. |
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