【摘要】 利用石墨平面碳原子轨道作sp2 杂化时π电子的紧束缚模型 ,对磁场中直状单层碳纳米管 (SWNTs)的电子结构进行理论推导和分析。磁场对碳纳米管的波矢 →k产生影响 ,从而使碳纳米管的电子结构及能隙均以磁通量子Φ0 (=h/e)为周期随磁通量Φ周期性变化。更多还原

【Abstract】 Based on the tight binding model of π electrons which are relevant to sp 2 hybridization of carbon atomic orbitals, we have derived and analyzed the electronic structure of the straight single wall carbon nanotubes (SWNTs) in a magnetic field. A magnetic field influences the wavevector Ak→U5 of the SWNTs to make the electronic structure and energy gap being periodic funtion of the magnetic flux Φ , with a period Φ 0(=h/e) .更多还原