论文标题
过渡金属二核苷元中的单层，双层和范德华异质结构
Magnetoexcitons in transition-metal dichalcogenides monolayers, bilayers, and van der Waals heterostructures
论文作者
论文摘要
我们研究了rydberg状态中的直接和间接磁性磁素，在外部磁场中的过渡金属二分法（TMDC）的异质结构中，垂直于单层或异质结构。我们计算Rydberg状态的磁脱糖的约束能量1 $ s $，2 $ s $，3 $ s $和4 $ s $和4 $ s $，通过使用Rytova-keldysh的数值集成Schrödinger方程，使用Rytova-keldysh潜在的直接磁excitons和Rytova-keldyss和colectyss的潜在。后者允许了解筛选在TMDC异质结构中的作用。我们报告了直接和间接磁磁体的磁场能量对结合能和Dimagnetic系数（DMC）的贡献。证明了直接和间接磁磁场的能量贡献的可调性。结果表明，可以通过HBN层的数量来操纵间接磁饰的结合能和DMC。因此，我们的研究提高了使用磁场来控制TMDC单层，双层和异质结构中直接和间接磁盘的结合能的可能性，并通过衡量HBN板层之间的hbbn seaets数量来量身定制绑定能和DMC的额外自由度。 TMDC异质结构中间接磁磁体的结合能和DMC的计算是新颖的，可以将其与实验结果进行比较。
We study direct and indirect magnetoexcitons in Rydberg states in monolayers and heterostructures of transition-metal dichalcogenices (TMDCs) in an external magnetic field, applied perpendicular to the monolayer or heterostructures. We calculate binding energies of magnetoexcitons for the Rydberg states 1$s$, 2$s$, 3$s$, and 4$s$ by numerical integration of the Schrödinger equation using the Rytova-Keldysh potential for direct magnetoexcitons and both the Rytova-Keldysh and Coulomb potentials for indirect magnetoexcitons. Latter allows understanding the role of screening in TMDCs heterostructures. We report the magnetic field energy contribution to the binding energies and diamagnetic coefficients (DMCs) for direct and indirect magnetoexcitons. The tunability of the energy contribution of direct and indirect magnetoexcitons by the magnetic field is demonstrated. It is shown that binding energies and DMCs of indirect magnetoexcitons can be manipulated by the number of hBN layers. Therefore, our study raises the possibility of controlling the binding energies of direct and indirect magnetostrictions in TMDC monolayers, bilayers and heterostructures using magnetic field and opens an additional degree of freedom to tailor the binding energies and DMCs for heterostructures by varying the number of hBN sheets between TMDC layers. The calculations of the binding energies and DMCs of indirect magnetoexcitons in TMDC heterostructures are novel and can be compared with the experimental results when they will be available.
