Manifestations of the electron-phonon interaction range in angle-resolved photoemission spectra
Abstract
Numerous angle-resolved photoemission spectroscopy (ARPES) studies of a wide class of low-density metallic systems, ranging from doped transition metal oxides to quasi-two-dimensional interfaces between insulators, exhibit phonon sidebands below the quasiparticle peak as a unique hallmark of polaronic correlations. Here, we single out properties of ARPES spectra that can provide a robust estimate of the effective range (screening length) of the electron-phonon interaction, regardless of the limited experimental resolution, dimensionality, and particular features of the electronic structure, facilitating a general methodology for an analysis of a whole class of materials.
- Publication:
-
Physical Review B
- Pub Date:
- September 2020
- DOI:
- 10.1103/PhysRevB.102.121108
- arXiv:
- arXiv:1911.10985
- Bibcode:
- 2020PhRvB.102l1108K
- Keywords:
-
- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- 5 pages, 7 figures