Current-density Functional Theory of Artificial Microstructures in a Magnetic Field

磁场中人造微结构的电流密度泛函理论

• 批准号: 9403908
• 负责人: Giovanni Vignale
• 金额: $ 15万
• 依托单位: University of Missouri-Columbia
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-06-01 至 1997-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9403908&HistoricalAwards=false
• 关键词: Current; density; Functional; Theory; Artificial

9403908 Vignale This theoretical grant involves the development of a current- density functional theory for many-electron systems in magnetic fields and its application to artificial microstructures in strong magnetic fields. Specific systems to be studied include: (i) quasi-two-dimensional quantum dots; (ii) quasi-three-dimensional wide parabolic quantum wells; (iii) quantum wires and rings. %%% Conventional density functional theory which has been so successful in describing the electronic structure of many physical systems is unable to account for the presence of strong magnetic fields in a self-consistent manner. This work will develop a current-density functional theory which incorporates the magnetic field from the beginning. This will enable many strongly correlated many-electron systems to be modeled accurately. Initial applications will be to mesoscopic systems such as quantum dots, wires nd rings which occur in microelectronics. ***

9403908维尼亚莱这一理论资助涉及磁场中多电子系统的电流密度泛函理论的发展及其在强磁场中人工微结构的应用。 待研究的具体系统包括：（i）准二维量子点;（ii）准三维宽抛物量子威尔斯阱;（iii）量子线和环。 传统的密度泛函理论在描述许多物理系统的电子结构方面非常成功，但它无法以自洽的方式解释强磁场的存在。 这项工作将开发一个电流密度泛函理论，其中包括从一开始的磁场。 这将使许多强关联的多电子系统能够被精确地建模。 最初的应用将是介观系统，如量子点，线和环，发生在微电子学。 ***