Complex Quasiparticle Band Structure Induced by Electron-Phonon Interaction: Band Splitting in the 1×1H/W(110) Surface

Asier Eiguren and Claudia Ambrosch-Draxl
Phys. Rev. Lett. 101, 036402 – Published 18 July 2008

Abstract

We show that the self-consistent solution of the complex Dyson equation for the electron-phonon (EP) problem introduces many body effects which are often observed in photoemission experiments. The formalism is applied to the H covered W(110) surface, using first-principles results for the electronic and vibrational structure. We demonstrate that the measured spin-polarized surface band splitting [Phys. Rev. Lett. 84, 2925 (2000); 89, 216802 (2002)] can be traced back to different quasiparticle (QP) states induced by EP coupling. Despite the breakdown of the single QP picture, the spectral functions are very well represented by the predicted multiple QP structure.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 29 January 2007

DOI:https://doi.org/10.1103/PhysRevLett.101.036402

©2008 American Physical Society

Authors & Affiliations

Asier Eiguren1,2 and Claudia Ambrosch-Draxl1

  • 1Chair of Atomistic Modelling and Design of Materials, University of Leoben, Franz-Josef-Straße 18, A-8700 Leoben, Austria
  • 2Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, E-20018 Donostia/San Sebastian, Spain

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 101, Iss. 3 — 18 July 2008

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×