论文标题
磁性β-波苯中的微型带隙产生：光学声子相互作用的影响
Mini Band Gap Generation in Magnetic Beta-Borophene: Effects of Optical Phonon Interaction
论文作者
论文摘要
在这项工作中，我们首次报告了我们所关注的，这是β-硼苯（BB）在极性基板上的可调电子特性（ZRO_2）。我们在Lee-low-Pines理论的框架内提供了在存在电子波（E-PH）相互作用的情况下计算基态能量的分析处方。在BB中极化子形成的理论研究中，我们描述了其有效质量，二极管带隙，迁移率和费米速度，这些速度由于平面外屈曲结构而在每个坐标中都不同。我们还分析了屈曲结构中电荷载体的平均有效质量和费米速度如何受外部磁场的影响。结果表明，在存在磁场的情况下，极化能量变得更有效，我们通过分析处方确认。严格地讨论了在磁场存在下平均有效质量和平均有效费米速度演变的特征。我们发现平均有效的费米速度较不敏感，而另一个受磁场的影响很大。
In this work we report for the first time, to the best of our concern, the tunable electronic properties of Beta-Borophene (BB) on the polar substrate (ZrO_2). We provide an analytical prescription for the calculation of ground state energy in presence electron-phonon (e-ph) interaction, within the framework of the Lee-Low-Pines theory. In the theoretical investigation of the polaron formation in BB, we describe its effective masses, polaronic band-gap, mobility, and Fermi velocities, which are different in each coordinate due to the out-of-plane buckling structure. We also analyze how the average effective mass and Fermi velocities of the charge carriers in the buckling structure are affected by the external magnetic field. It is shown that the polaronic energy becomes more effective in presence of a magnetic field, which we confirm through an analytical prescription. The characteristics of the evolution of average effective mass and average effective Fermi velocity in the presence of a magnetic field are critically discussed. We find that the average effective Fermi velocity is less sensitive, while the other one is greatly influenced by the magnetic field.
