论文标题
由于对狄拉克孔连衣裙状态的光学可调节椭圆形分散剂的不对准而异常的klein悖论和传入颗粒的方向
Anomalous Klein paradox due to misalignment of optically-tunable elliptical dispersion for Dirac-cone dressed states and direction of incoming particles
论文作者
论文摘要
在骰子晶格中具有穿着状态电子的衍生边界条件之后，我们在线性偏振的离子异位和高频率敷料领域中调查了通过平方静电势屏障的电子隧穿，并在非零的klein paradox中，对于非零的入射角度，在线性偏振的异位和高频率调料场上进行了孔隙式隧道，并在非零的入射角度上进行了良好的测试。狄拉克 - 孔的着装状态和我们系统中传入的动力学颗粒的方向。发现有限的入射角，取决于光的类型，光诱导的能量分散方面的各向异性和电子光耦合的强度。同时，与石墨烯相比，我们还观察到骰子晶格中的非高峰透射幅度更大。我们预计本文的理论结果可用于广泛的狄拉克材料，并用于控制电子的相干隧道和弹道传输，以构建新型的光学和电子纳米级开关设备。
After having derived boundary conditions for dressed-state electrons in a dice lattice, we investigate the electron tunneling through a square electrostatic potential barrier in both dice lattices and graphene under a linearly-polarized off-resonance and high-frequency dressing field, and demonstrate the anomalous Klein paradox for a nonzero incident angle, resulted from the misalignment of optically-controllable elliptical dispersion for Dirac-cone dressed states and the direction of incoming kinetic particles in our system. This finite incident angle is found depending on the type of light polarization, the light-induced anisotropy in energy dispersion and the strength of electron-light coupling. Meanwhile, we also observe much larger off-peak transmission amplitudes in dice lattices in comparison with graphene. We expect the theoretical results in this paper could be used for wide range of Dirac materials and applied to controlling both coherent tunneling and ballistic transport of electrons for constructing novel optical and electronic nano-scale switching devices.
