Tetralayer graphene has recently become a new addition to the family of few-layer graphene with versatile electronic properties. This material can be realised in three distinctive stacking configurations, for which we determine spectroscopic signatures in angle-resolved photoemission spectroscopy (ARPES), dynamical optical conductivity, and Raman spectra of inter-band excitations. The reported library of spectral features of tetralayer graphenes can be used for the non-invasive identification of the stacking order realised in a particular film.
@article{arxiv.2302.07374,
title = {Spectroscopic signatures of tetralayer graphene polytypes},
author = {Andrew McEllistrim and Aitor Garcia-Ruiz and Zachary A. H. Goodwin and Vladimir I. Fal`ko},
journal= {arXiv preprint arXiv:2302.07374},
year = {2023}
}