2023/04/28 by Yuri Hasegawa, Hasegawa, Yuri, Takuma Yamaguchi +15
Engineering · Physics and Astronomy · #Advanced Chemical Physics Studies #Advanced Thermodynamics and Statistical Mechanics #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Molecular Junctions and Nanostructures
paper · pdf · doi:10.48550/arxiv.2304.14734
openalex publication_date 2023/04/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The impact of van der Waals interaction on the electronic structure between a pentacene monolayer and a graphite surface was investigated. Upon cooling the monolayer, newly formed dispersive bands, showing the constant final state nature overlapping with the non-dispersive, discrete molecular orbital state, is observed by low-energy angle-resolved photoelectron spectroscopy. The dispersive band consists of positive and negative intensities depending on the final state energy, indicating Fano resonance involving a discrete molecular state that couples a continuum state upon photoionization. A wave-function overlap is demonstrated according to their larger spread in unoccupied states even at the weakly bounded interface by Fano spectral analysis.