...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review. B, Condensed Matter And Materials Physics >Electronic properties of carbon nanotubes investigated by means of standard electromagnetic simulators
【24h】

Electronic properties of carbon nanotubes investigated by means of standard electromagnetic simulators

机译：通过标准电磁模拟器研究碳纳米管的电子性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Due to the formal analogy between Maxwell and Schroedinger equations, electromagnetic (e.m.) simulators may become a powerful numerical tool for the analysis of carrier transport in low-dimensional systems. In the following, we exploit this analogy in order to investigate the electronic properties of carbon nanotubes (CNTs). As a matter of fact, e.m. commercial solvers have reached a high degree of efficiency due to the demand of the high-speed and microwave circuit market. In this paper, we suggest applying e.m. numerical solvers to CNTs with a view to derive their main properties, such as dispersion curves and effective masses. In particular, we have used the "CST Microwave Studio," implementing a finite element method (FEM). However, many other e.m. solvers are available, exploiting different approaches (FDTD, Method of Moment, TLM, etc.). In order to assess the validity of the approach, we have investigated an important example of band-gap distortion and splitting of degenerate states with respect to the angular momentum, due to an external electric field. The model can also be applied in order to better explain the behavior of metal-CNT contacts, representing a critical point for analysis and synthesis of nanotransistor devices.
机译：由于Maxwell和Schroedinger方程之间的形式上的类比，电磁（e.m.）模拟器可能成为分析低维系统中载流子传输的强大数值工具。在下文中，我们利用这种类比来研究碳纳米管（CNT）的电子特性。事实上，例如由于高速和微波电路市场的需求，商业求解器已经达到了很高的效率。在本文中，我们建议应用e.m.碳纳米管的数值求解器，以推导它们的主要特性，例如色散曲线和有效质量。特别是，我们使用了“ CST Microwave Studio”来实现有限元方法（FEM）。但是，其他许多可以使用不同的方法（FDTD，矩量方法，TLM等）来求解。为了评估该方法的有效性，我们研究了由于外部电场导致的带隙畸变和简并状态相对于角动量的分裂的重要示例。该模型也可以应用，以更好地解释金属-CNT接触的行为，代表了纳米晶体管器件分析和合成的关键点。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号