Superfluid density as a guide to optimal superconductivity in doped low dimensional antiferromagnets

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Following the direct observation of abrupt changes in the superconducting ground state in doped low dimensional antiferromagnets, we have identified a phase transition where superconductivity is optimal. The experiments indicate the presence of a putative quantum critical point associated with the emergence of a glassy state. This mechanism is argued to be an intrinsic property and as such largely independent of material quality and the level of disorder.
Invited article in memory of D. Shoenberg; To be published by the American Inst. of Phys. and the journal of Low Temp. Phys

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Strongly Correlated Electrons, Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/116075

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0609628
 http://arxiv.org/abs/cond-mat/0609628

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arXiv