Energy Band Structure of the Electron Gas in Periodic Quantum Wells

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2012,（8）
• 页码范围: 221-224
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/29/8/087301

摘要

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.