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

摘要: Due to the formal analogy between Maxwell and Schr\"odinger equations, electromagnetic (e.m.) simulators may become a powerful numerical tool for analysis of carrier transport in low-dimensional systems. In following, we exploit this order investigate electronic properties carbon nanotubes (CNTs). As matter fact, e.m. commercial solvers have reached high degree efficiency due demand high-speed microwave circuit market. paper, suggest applying CNTs with view derive their main properties, such as dispersion curves effective masses. particular, used ``CST Microwave Studio,'' implementing finite element method (FEM). However, many other are available, exploiting different approaches (FDTD, Method Moment, TLM, etc.). assess validity approach, investigated an important example band-gap distortion splitting degenerate states respect angular momentum, external electric field. The model can also be applied better explain behavior metal-CNT contacts, representing critical point synthesis nanotransistor devices.