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28 March 2024
 
  » arxiv » cond-mat/9804189

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New scenario for high-T_c cuprates: electronic topological transition as a motor for anomalies in the underdoped regime
F. Onufrieva ; P. Pfeuty ; M. Kiselev ;
Date 17 Apr 1998
Subject Superconductivity | cond-mat.supr-con
AffiliationLaboratoire Leon Brillouin, CE-Saclay, France
AbstractWe have discovered a new nontrivial aspect of electronic topological transition (ETT) in a 2D free fermion system on a square lattice. The corresponding exotic quantum critical point, delta=delta_c, T=0, (n=1-delta is an electron concentration) is at the origin of anomalous behaviour in the interacting system on one side of ETT, delta
Source arXiv, cond-mat/9804189
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