Avoided Quantum Criticality in YBa_2Cu_3O_y and La_{2-x}Sr_xCuO_4

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dc.creatorSonier, J. E.
dc.creatorCallaghan, F. D.
dc.creatorAndo, Y.
dc.creatorKiefl, R. F.
dc.creatorBrewer, J. H.
dc.creatorKaiser, C. V.
dc.creatorPacradouni, V.
dc.creatorSabok-Sayr, S. -A.
dc.creatorSun, X. F.
dc.creatorKomiya, S.
dc.creatorHardy, W. N.
dc.creatorBonn, D. A.
dc.creatorLiang, R.
dc.date2006-10-02
dc.date.accessioned2026-07-07T07:27:18Z
dc.date.available2026-07-07T07:27:18Z
dc.descriptionSpin-glass magnetism confined to individual weakly interacting vortices is detected in two different families of high-transition-temperature (T_c) superconductors, but only in samples on the low-doping side of the low-temperature normal state metal-to-insulator crossover (MIC). Our findings unravel the mystery of the MIC, but more importantly identify the true location of the field-induced quantum phase transition (QPT) in the superconducting state. The non-uniform appearance of magnetism in the vortex state favours a surprisingly exotic phase diagram, in which spatially inhomogeneous competing order is stabilized at the QPT, and an `avoided' quantum critical point (QCP) is realized at zero magnetic field.
dc.description4 pages, 3 figures, submitted to PRL
dc.identifierhttps://arxiv.org/abs/cond-mat/0610051
dc.identifierhttp://arxiv.org/abs/cond-mat/0610051
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/117333
dc.subjectSuperconductivity
dc.titleAvoided Quantum Criticality in YBa_2Cu_3O_y and La_{2-x}Sr_xCuO_4
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