Published in

American Physical Society, Physical review B, 8(85)

DOI: 10.1103/physrevb.85.085124

Links

Tools

Export citation

Search in Google Scholar

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

Journal article published in 2011 by Ciro Taranto, G. Sangiovanni ORCID, Karsten Held, Massimo Capone, Antoine Georges ORCID, Alessandro Toschi
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
Upload
Green circle
Postprint: archiving allowed
Upload
Green circle
Published version: archiving allowed
Upload
Policy details
Data provided by SHERPA/RoMEO

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 LaSrMnO_4 [G̈ossling et al., Phys. Rev. B 77, 035109 (2008)] ; Comment: 11 pages, 9 figures