论文标题
频带结构对场发射共振中波功能耗散的影响
Impact of Band Structure on Wave Function Dissipation in Field Emission Resonance
论文作者
论文摘要
我们在AG（111）和Ag（100）表面上证明了场发射共振（FER）线宽的倒数与FER中共振电子的平均寿命成正比，可能随电场而变化。 Ag（111）的变化几乎平滑，而Ag（100）上的变化是零星的，并且显着波动。可以通过其不同的投影散装带结构和量子力学的集合解释来解释这种巨大的差异，据此，所有共振电子均由单波函数控制。 AG（100）具有高于其真空水平的能隙，而AG（111）则没有。因此，与FER线宽相关的波函数的耗散速率几乎稳定，而Ag（100）上波动的波动函数的耗散率几乎稳定。波动表明，可以通过FER研究Ag（100）表面上的量子捕集效应和表面偶极层。
We demonstrated on Ag(111) and Ag(100) surfaces that the reciprocal of the field emission resonance (FER) linewidth, which is proportional to the mean lifetime of resonant electrons in FER, may vary with the electric field. The variation on Ag(111) was nearly smooth, whereas that on Ag(100) was sporadic and fluctuated remarkably. This drastic difference can be explained through their dissimilar projected bulk band structures and the ensemble interpretation of quantum mechanics, according to which all resonant electrons are governed by a single wave function. Ag(100) has an energy gap above its vacuum level, whereas Ag(111) does not. Consequently, the dissipation rate of the wave function, which is relevant to the FER linewidth, on Ag(111) was almost stable, whereas that on Ag(100) fluctuated. The fluctuation revealed that the quantum trapping effect and surface dipole layer on Ag(100) surface can be investigated through FER.
