• Editors' Suggestion

Signature of antiferromagnetic long-range order in the optical spectrum of strongly correlated electron systems

C. Taranto, G. Sangiovanni, K. Held, M. Capone, A. Georges, and A. Toschi
Phys. Rev. B 85, 085124 – Published 23 February 2012

Abstract

We show how the onset of a non-Slater antiferromagnetic ordering in a correlated material can be detected by optical spectroscopy. Using dynamical mean-field theory we identify two distinctive features: The antiferromagnetic ordering is associated with an enhanced spectral weight above the optical gap, and well-separated spin-polaron peaks emerge in the optical spectrum. Both features are indeed observed in LaSrMnO4 [A. Gössling et al., Phys. Rev. B 77, 035109 (2008)].

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
2 More
  • Received 31 December 2011

DOI:https://doi.org/10.1103/PhysRevB.85.085124

©2012 American Physical Society

Authors & Affiliations

C. Taranto1, G. Sangiovanni1, K. Held1, M. Capone2, A. Georges3,4,5, and A. Toschi1

  • 1Institute for Solid State Physics, Vienna University of Technology, A-1040 Vienna, Austria
  • 2Democritos National Simulation Center, Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali (IOM) and Scuola Internazionale Superiore di Studi Avanzati (SISSA), Via Bonomea 265, I-34136 Trieste, Italy
  • 3Centre de Physique Théorique, Ecole Polytechnique, CNRS, F-91128 Palaiseau Cedex, France
  • 4Collège de France, 11 place Marcelin Berthelot, F-75005 Paris, France
  • 5DPMC, Université de Genève, 24 quai Ernest Ansermet, CH-1211 Genève, Switzerland

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 85, Iss. 8 — 15 February 2012

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 B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×