Antiresonance in Transmission through a Heterojunction Formed by Topological Nodal‐Line Semimetals,Annalen Der Physik

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Antiresonance in Transmission through a Heterojunction Formed by Topological Nodal‐Line Semimetals
Annalen Der Physik ( IF 2.2 ) Pub Date : 2021-03-09 , DOI: 10.1002/andp.202000510
Di Zhang ₁ , Xue‐Si Li ₁ , Lian‐Lian Zhang ₁ , Tong‐Tong Xu ₁ , Hao Chu ₂ , Wei‐Jiang Gong ₁

Affiliation

Quantum transmission through a heterojunction formed by two types of nodal‐line semimetals is investigated. Results show that the initial energy and energy range of the quantum transmission can be modulated efficiently when the barrier region demonstrates its different energy‐band properties. Antiresonance points can also appear in the transmission function spectra. Moreover, if the barrier is parallel to the basal planes of the nodal‐line semimetals, one gap appears in the transmission function spectrum instead of the normal antiresonance point. In addition, the Klein tunneling displays new characteristics in such a heterojunction. All these results provide useful information for adjusting the transmission behaviors in the heterojunctions of nodal‐line semimetals.

中文翻译：

通过拓扑节点线半金属形成的异质结传输中的反共振

研究了通过两种类型的节点线半金属形成的异质结的量子传输。结果表明，当势垒区显示出其不同的能带特性时，可以有效地调制量子传输的初始能量和能量范围。反共振点也可以出现在传输函数谱中。此外，如果势垒平行于节点线半金属的基面，则在传递函数谱中会出现一个间隙，而不是正常的反共振点。另外，克莱因隧穿在这种异质结中显示出新的特性。所有这些结果为调节节点线半金属异质结中的传输行为提供了有用的信息。

更新日期：2021-04-08

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