论文标题
原始双层中强烈吸收混合层中层激子的偶极性和磁性特性
Dipolar and magnetic properties of strongly absorbing hybrid interlayer excitons in pristine bilayer MoS$_2$
论文作者
论文摘要
范德华的异质结构由过渡金属二甲藻元素单层（TMDS）组成，其特征是它们真正丰富的激发型特性，这些特性由它们的结构，几何和电子特性确定：与纯的单层，电子和孔相反，可以在不同的材料中托管，导致高度可调节的型二色型多层状菌株。但是，对于真正的空间间接激子，偶极性质通常伴随着激素振荡器强度的显着淬火。通过电场和磁场依赖性测量值，我们证明了略有偏见的原始双层MOS $ _2 $托管强烈的偶极激子，该激素可保持强振荡器强度。我们仔细检查了它们的巨型偶极矩，并通过偏置依赖性磁场测量值进一步阐明了它们的轨道和山谷物理。
Van der Waals heterostructures composed of transition metal dichalcogenide monolayers (TMDs) are characterized by their truly rich excitonic properties which are determined by their structural, geometric and electronic properties: In contrast to pure monolayers, electrons and holes can be hosted in different materials, resulting in highly tunable dipolar manyparticle complexes. However, for genuine spatially indirect excitons, the dipolar nature is usually accompanied by a notable quenching of the exciton oscillator strength. Via electric and magnetic field dependent measurements, we demonstrate, that a slightly biased pristine bilayer MoS$_2$ hosts strongly dipolar excitons, which preserve a strong oscillator strength. We scrutinize their giant dipole moment, and shed further light on their orbital- and valley physics via bias-dependent magnetic field measurements.
