activity
20182026
most citedPeierls versus Holstein models for describing electron-phonon coupling in perovskites

23 citations · 33 across the 6 of their papers we have counts for

collaborators

6 papers

cond-mat.mes-hall2026

Probing the Penetration Depth of Topological Surface States by Magnetic Impurity Scattering in V-doped SbTe

Yidi Wang, Zeyu Ma, Pengcheng Chen +11

Topological insulators host Dirac surface states (SS) protected by time-reversal symmetry. Inter-surface hybridization can gap the SS and give rise to the quantum spin Hall effect…

cond-mat.str-el2025

Angle-resolved photoemission intensity for multi-orbital bands: Complex interplay between the self-energy matrix and the optical matrix elements

Yau Chuen Yam, Mona Berciu, George A. Sawayzky

We use a simple one-dimensional two-band model with electron-phonon coupling to illustrate some of the complications that arise in multi-band systems when trying to extract a self-…

cond-mat.str-el2022

Dressing due to correlations strongly reduces the effect of electron-phonon coupling

Yau-Chuen Yam, George A. Sawatzky, Mona Berciu

We investigate the difference between the coupling of a bare carrier to phonons versus the coupling of a correlations-dressed quasiparticle to phonons, and show that latter may be…

cond-mat.str-el2020★ 23 cited

Peierls versus Holstein models for describing electron-phonon coupling in perovskites

Yau-Chuen Yam, Mirko M. Moeller, George A. Sawatzky +1

We use the Momentum Average approximation together with perturbative approaches, in the appropriate limits, to study the single polaron physics on a perovskite lattice inspired by…

cond-mat.mes-hall2019★ 7 cited

Probing Image Potential States on Topological Semimetal Antimony Surface

Jian-Feng Ge, Haimei Zhang, Yang He +4

A point charge near the surface of a topological insulator (TI) with broken time-reversal symmetry is predicted to generate an image magnetic charge in addition to an image electri…

cond-mat.mes-hall2018★ 3 cited

Unexpected Zero Bias Conductance Peak on the Topological Semimetal Sb(111) with a Broken Bilayer

Yau-Chuen Yam, Shiang Fang, Pengcheng Chen +9

The long-sought Majorana fermion is expected to manifest in a topological-superconductor heterostructure as a zero bias conductance peak (ZBCP). As one promising platform for such…