2025/07/29 by Peter Wahl, Luke C. Rhodes, Wahl, Peter +3 · 1 voice · 2 citations
Engineering · Physics and Astronomy · #Acoustic Wave Resonator Technologies #Electron #FOS: Physical sciences #Function (biology) #Interference (communication) #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Quantum interference #Quantum tunnelling #Quasiparticle #Scattering #Strongly Correlated Electrons (cond-mat.str-el) #Superconductivity (cond-mat.supr-con) #cond-mat.mes-hall #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.2507.22137
openalex publication_date 2025/07/29 · arxiv published 2025/07/29 · openalex created_date 2025/10/10 · arxiv updated 2025/11/05 · openalex updated_date 2026/08/05
Quasiparticle interference imaging (QPI) provides a route to characterize electronic structure from real space images acquired using scanning tunneling microscopy. It emerges due to scattering of electrons at defects in the material. The QPI patterns encode details of the k-space electronic structure and its spin and orbital texture. Recovering this information from a measurement of QPI is non-trivial, requiring modelling not only of the dominant scattering vectors, but also the overlap of the wave functions with the tip of the microscope. While, in principle, it is possible to model QPI from density functional theory (DFT) calculations, for many quantum materials it is more desirable to model the QPI from a tight-binding model, where inaccuracies of the DFT calculation can be corrected. Here, we introduce an efficient code to simulate quasiparticle interference from tight-binding models using the continuum Green's function method.