论文标题
石墨烯科比诺磁盘中的量子隧穿，螺旋磁铁电位带有楔形披露
Quantum tunneling in graphene Corbino disk in a solenoid magnetic potential with wedge disclination
论文作者
论文摘要
我们研究了在磁通量$φ_i$的情况下，我们研究了内部$ r_1 $和外部$ r_2 $ radii的楔形披露效果。我们为不同区域求解了狄拉克方程，并从汉克尔功能方面获得了能量谱的溶液。大型参数的渐近行为使我们能够确定传输，狂热因素和电导。我们确定了通过用五角大楼，方形，七叶大或八角形替换六角形来局部修改晶体对称性的情况。我们表明，楔形披露$ n $修饰了传输振荡的幅度。我们发现，Fano因子振荡的时期是Aharonov-Bohm类型的，它在很大程度上取决于观察到强烈峰的$ n $。另一个结果，$ n $改变了Aharonov-Bohm类型的最低电导振荡。我们表明，$ n $最大程度地减少了共振的效果，并降低了电导幅度的幅度$ΔG$ 振荡。
We investigate the wedge disclination effect on quantum tunneling of a Corbino disk in gapped-graphene of inner $R_1$ and outer $R_2$ radii in the presence of magnetic flux $Φ_i$. We solve Dirac equation for different regions and obtain the solutions of energy spectrum in terms of Hankel functions. The asymptotic behaviors for large arguments allow us to determine the transmission, Fano factor and conductance. We establish the case where the crystal symmetry is modified locally by replacing a hexagon by pentagon, square, heptagon or octagon. We show that the wedge disclination $n$ modifies the amplitude of transmission oscillations. We find that the period of Fano factor oscillations is of the Aharonov-Bohm type, which strongly depends on $n$ where intense peaks are observed. As another result, $n$ changes the minimum and period of conductance oscillations of the Aharonov-Bohm type. We show that $n$ minimizes the effect of resonance and decreases the amplitude of conductance magnitude $ΔG$ oscillations.
