论文标题
单层WSE2中免费运营商对激发激发激发激发激发激发激发激发激发激励的敷料
Autoionization and dressing of excited excitons by free carriers in monolayer WSe2
论文作者
论文摘要
我们通过实验表明，通过单层半导体中的自由电荷载体的连续可调的费米海对激发激发的激发剂状态的敷料。它代表了以前在常规材料系统中无法访问的带电激发剂两粒子激发的异常情况。我们确定了激发态Trions，准确地确定了电子和孔掺杂方向的零密度极限中其结合能，并观察到升高掺杂时出现的多体现象。结合实验和理论，我们可以通过与自由电荷载体的相互作用来促进促进的脱节耦合。我们为准粒子的自动化过程提供了证据，这是一种独特的散射途径，可用于原子系统中的激发态。最后，我们证明了光学过渡强度从激发激发量转移到装扮的激子，费米极性，以及来自其非平衡种群的相关光发射。
We experimentally demonstrate dressing of the excited exciton states by a continuously tunable Fermi sea of free charge carriers in a monolayer semiconductor. It represents an unusual scenario of two-particle excitations of charged excitons previously inaccessible in conventional material systems. We identify excited state trions, accurately determine their binding energies in the zero-density limit for both electron- and hole-doped regimes, and observe emerging many-body phenomena at elevated doping. Combining experiment and theory we gain access to the intra-exciton coupling facilitated by the interaction with free charge carriers. We provide evidence for a process of autoionization for quasiparticles, a unique scattering pathway available for excited states in atomic systems. Finally, we demonstrate a complete transfer of the optical transition strength from the excited excitons to dressed excitons, Fermi polarons, as well as the associated light emission from their non-equilibrium populations.
