Dynamical electronic nematicity from Mott physics

TitreDynamical electronic nematicity from Mott physics
Type de publicationJournal Article
Nouvelles publications2010
AuteursOkamoto, S, Sénéchal, D, Civelli, M, Tremblay, A-MS
JournalPhysical Review B (Editor's choice)
Volume82
Pagination180511(R)/1-4
Année de publication2010
Résumé

Very large anisotropies in transport quantities have been observed in the presence of very small in-plane structural anisotropy in many strongly correlated electron materials. By studying the two-dimensional Hubbard model with dynamical-mean-field theory for clusters, we show that such large anisotropies can be induced without static stripe order if the interaction is large enough to yield a Mott transition. Anisotropy decreases at large frequency. The maximum effect on conductivity anisotropy occurs in the underdoped regime, as observed in high-temperature superconductors.

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