The Magnetism of Li doped La$_{2}$CuO$_4$: the antiferromagnetic spin-shard state

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dc.creatorSushkov, O. P.
dc.creatorNeto, A. H. Castro
dc.date2005-04-11
dc.date.accessioned2026-07-07T03:04:40Z
dc.date.available2026-07-07T03:04:40Z
dc.descriptionWe study the dynamics of a single hole in Li and Sr doped La$_{2}$CuO$_4$ and its extension to a finite hole concentration. We compare the physics of La$_{2-x}$Sr$_x$CuO$_4$ and La$_{2}$Cu$_{1-x}$Li$_x$O$_4$ and explain why these systems are remarkably different. We demonstrate that holes in La$_{2}$Cu$_{1-x}$Li$_x$O$_4$ are always localized and that there is a critical concentration, $x_c\approx 0.03$, 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 La$_{2}$Cu$_{1-x}$Li$_x$O$_4$. Two experiments that can test our theory are proposed.
dc.identifierhttps://arxiv.org/abs/cond-mat/0504234
dc.identifierhttp://arxiv.org/abs/cond-mat/0504234
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26171
dc.subjectStrongly Correlated Electrons
dc.subjectDisordered Systems and Neural Networks
dc.titleThe Magnetism of Li doped La$_{2}$CuO$_4$: the antiferromagnetic spin-shard state
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