Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102099
Title: Interplay of Correlations and Kohn Anomalies in Three Dimensions: Quantum Criticality with a Twist
Authors: Schäfer, T.
Katanin, A. A.
Held, K.
Toschi, A.
Issue Date: 2017
Publisher: American Physical Society
Citation: Interplay of Correlations and Kohn Anomalies in Three Dimensions: Quantum Criticality with a Twist / T. Schäfer, A. A. Katanin, K. Held, et al. — DOI 10.1103/PhysRevLett.119.046402 // Physical Review Letters. — 2017. — Vol. 119. — Iss. 4. — 046402.
Abstract: A general understanding of quantum phase transitions in strongly correlated materials is still lacking. By exploiting a cutting-edge quantum many-body approach, the dynamical vertex approximation, we make important progress, determining the quantum critical properties of the antiferromagnetic transition in the fundamental model for correlated electrons, the Hubbard model in three dimensions. In particular, we demonstrate that - in contradiction to the conventional Hertz-Millis-Moriya theory - its quantum critical behavior is driven by the Kohn anomalies of the Fermi surface, even when electronic correlations become strong. © 2017 American Physical Society.
Keywords: PHASE TRANSITIONS
ANTIFERROMAGNETIC TRANSITION
CORRELATED ELECTRONS
ELECTRONIC CORRELATION
MANY-BODY APPROACH
QUANTUM CRITICAL BEHAVIOR
QUANTUM CRITICALITY
QUANTUM PHASE TRANSITIONS
STRONGLY CORRELATED MATERIALS
QUANTUM THEORY
ARTICLE
URI: http://hdl.handle.net/10995/102099
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85026449614
PURE ID: 1973538
cba46491-c49a-4fff-8480-01cb129303d9
ISSN: 319007
DOI: 10.1103/PhysRevLett.119.046402
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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