Abstract

We have carried out extensive first-principles angle-resolved photointensity (ARPES) simulations in Bi2212 wherein the photoemission process is modeled realistically by taking into account the full crystal wave functions of the initial and final states in the presence of the surface. The spectral weight of the ARPES feature associated with the CuO₂ plane bands is found to undergo large and systematic variations with k∥ as well as the energy and polarization of the incident photons. These theoretical predictions are in good accord with the corresponding measurements, indicating that the remarkable observed changes in the spectral weights in Bi2212 are essentially a matrix element effect and that the importance of matrix elements should be kept in mind in analyzing the ARPES spectra in the high Tc's.

Notes

Originally published in Physical Review Letters v.83 (1999): 5154-5157. DOI: 10.1103/PhysRevLett.83.5154

Keywords

angle-resolved photointensity simulatons, ARPES, Bi2212

Subject Categories

Photoemission

Disciplines

Physics

Publisher

American Physical Society

Publication Date

12-13-1999

Rights Information

Copyright 1999 American Physical Society.

Rights Holder

American Physical Society

Click button above to open, or right-click to save.

Included in

Physics Commons

Share

COinS