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arXiv 2110.09342cond-mat.mes-hallquant-ph
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双势垒下带隙磷分子的隧道效应

Tunneling Effect in Gapped Phosphorene through Double Barriers

Jilali Seffadi, Ilham Redouani, Youness Zahidi, Ahmed Jellal

摘要:

研究了含质量项的磷烯中载流子通过双势垒的输运性质。得到了能谱的解,并数值计算了本征值对$x$方向势垒势和波矢的依赖关系。使用边界条件与矩阵传递法,我们确定传输和电导我们的系统。这两个量进行了分析,通过研究他们的主要特点作为一个功能的物理参数沿扶手椅方向。我们的研究结果表明磷烯的高度各向异性的特点和没有签名的克莱因隧道在正常入射相反的石墨烯。此外,发现在适当的条件下,透射率和电导随势垒宽度的变化呈现振荡行为。

英文摘要:

We study the transport properties of charge carriers in phosphorene with a mass term through double barriers. The solutions of the energy spectrum are obtained and the dependence of the eigenvalues on the barrier potentials and wave vectors in the $x$-direction is numerically computed. Using the boundary conditions together with the matrix transfer method, we determine transmission and the conductance of our system. These two quantities are analyzed by studying their main characteristics as a function of the physical parameters along the armchair direction. Our results show the highly anisotropic character of phosphorene and the no signature of Klein tunneling at normal incidence contrary to graphene. Moreover, it is found that the transmission and conductance display oscillatory behaviors in terms of the barrier width under suitable conditions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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