Observing quantum trapping on MoS<sub>2</sub> through the lifetimes of resonant electrons: revealing the Pauli exclusion principle
Wei-Bin Su, Shin-Ming Lu, Horng-Tay Jeng, Wen-Yuan Chan, Ho-Hsiang Chang, Woei Wu Pai, Hsiang-Lin Liu, Chia-Seng Chang
Abstract
surface due to its wave nature. Because the relaxed electron and the resonant electron have the same spin, through the action of the Pauli exclusion principle, the lifetimes of the resonant electrons can be substantially prolonged when the relaxed electrons engage in resonance trapping. The linewidth of the FER is thus considerably reduced to as narrow as 12 meV. The coexistence of the resonant electron and the relaxed electron requires the emission of two electrons, which can occur through the exchange interaction.
Topics & Concepts
Pauli exclusion principleElectronAtomic physicsPhysicsLaser linewidthResonance (particle physics)Quantum tunnellingTrappingElectric fieldCondensed matter physicsQuantumChemistryPhotonField (mathematics)Molecular physicsScanning tunneling microscopeSpontaneous emissionField electron emissionStark effectWave function2D Materials and ApplicationsMolecular Junctions and NanostructuresChemical and Physical Properties of Materials