Ni-Impurity Effects on Incommensurate Spin Correlations in Superconducting La2-xSrxCuO4 (x=0.06 and 0.07)

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dc.creatorHiraka, H.
dc.creatorOhta, S.
dc.creatorWakimoto, S.
dc.creatorMatsuda, M.
dc.creatorYamada, K.
dc.date2006-11-05
dc.date.accessioned2026-07-07T07:31:13Z
dc.date.available2026-07-07T07:31:13Z
dc.descriptionNeutron scattering experiments have been carried out to explore Ni-impurity effects on static spin correlations in La2-xSrxCuO4 (LSCO) in the vicinity of the superconductor-insulator boundary where both parallel and diagonal spin-density modulations (SDM) coexist at low temperature. Upon dilute Ni substitution the incommensurability decreases for both types of SDM, while the volume fraction of the diagonal (parallel) SDM increases (decreases). Subsequent Ni doping induces a bulk three-dimensional antiferromagnetic (AF) order when x ~ Ni concentration. TN of such the AF order depends on x and seems to disappear at x ~ 0.1. These effects are approximately ascribed by a reduction of mobile holes, and by a transition from the parallel to the diagonal SDM induced by Ni.
dc.description6 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0611123
dc.identifierhttp://arxiv.org/abs/cond-mat/0611123
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/118675
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleNi-Impurity Effects on Incommensurate Spin Correlations in Superconducting La2-xSrxCuO4 (x=0.06 and 0.07)
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