2005/04/11 by O. P. Sushkov, A. H. Castro Neto, Sushkov, O. P. +1
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Disordered Systems and Neural Networks (cond-mat.dis-nn) #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.dis-nn #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.cond-mat/0504234
arxiv created 2005/04/11 · openalex publication_date 2005/04/11 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We study the dynamics of a single hole in Li and Sr doped La2CuO4 and its extension to a finite hole concentration. We compare the physics of La2-xSrxCuO4 and La2Cu1-xLixO4 and explain why these systems are remarkably different. We demonstrate that holes in La2Cu1-xLixO4 are always localized and that there is a critical concentration, xc≈ 0.03, above which the holes break the global antiferromagnetic state into an array of weakly coupled antiferromagnetic clusters (antiferromagnetic shards). We show that the spin-shard state provides a description of the magnetic and electric properties of La2Cu1-xLixO4. Two experiments that can test our theory are proposed.