Gigantic Impact of Magnetic Impurity on Stripe Order in La$_{2-x}$Sr$_{x}$CuO$_4$ ($x$$\sim$1/8)

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dc.creatorFujita, M.
dc.creatorEnoki, M.
dc.creatorIikubo, S.
dc.creatorKudo, K.
dc.creatorKobayashi, N.
dc.creatorYamada, K.
dc.date2009-03-31
dc.date.accessioned2026-07-07T12:58:32Z
dc.date.available2026-07-07T12:58:32Z
dc.descriptionPrecise neutron-scattering experiments on La$_{1.88-y}$Sr$_{0.12+y}$Cu$_{0.99}$R$_{0.01}$O$_4$ ($y$=0 for R=Cu, Zn and $y$=0.01 for R=Ga, Fe) were performed to examine the stability of stripe order in cuprate oxides through impurity substitution effects. For all the impurity-substituted samples a static charge-density-wave order similar to that reported in the low-temperature-tetragonal phase (LTT) was discovered in the low-temperature-orthorhombic (LTO) phase for the first time. Fe substitution significantly enhanced both the charge- and spin-density-wave orders. These results indicate that dynamical charge stripes can be stabilized into static ones around the Cu-site defects regardless of the type of crystal structure. Additionally, large magnetic moments at the Cu-site may induce a decrease in the Cu spin fluctuations around the defects, which in turn, enhances the static charge-density-wave order.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0903.5391
dc.identifierhttp://arxiv.org/abs/0903.5391
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/225271
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleGigantic Impact of Magnetic Impurity on Stripe Order in La$_{2-x}$Sr$_{x}$CuO$_4$ ($x$$\sim$1/8)
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