Spin Susceptibility in Underdoped Cuprates: Insights from a Stripe-Ordered Crystal

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dc.creatorHuecker, M.
dc.creatorGu, G. D.
dc.creatorTranquada, J. M.
dc.date2005-03-17
dc.date2008-11-10
dc.date.accessioned2026-07-07T12:10:19Z
dc.date.available2026-07-07T12:10:19Z
dc.descriptionWe report a detailed study of the temperature and magnetic-field dependence of the spin susceptibility for a single crystal of La(1.875)Ba(0.125)CuO(4). From a quantitative analysis, we find that the temperature-dependent anisotropy of the susceptibility, observed in both the paramagnetic and stripe-ordered phases, directly indicates that localized Cu moments dominate the magnetic response. A field-induced spin-flop transition provides further corroboration for the role of local moments. Contrary to previous analyses of data from polycrystalline samples, we find that a commonly-assumed isotropic and temperature-independent contribution from free carriers, if present, must be quite small. Our conclusion is strengthened by extending the quantitative analysis to include crystals of La(2-x)Ba(x)CuO(4) with x=0.095 and 0.155. On the basis of our results, we present a revised interpretation of the temperature and doping dependence of the spin susceptibility in La(2-x)(Sr,Ba)(x)CuO(4).
dc.description9 pages, 9 figures; presentation greatly expanded, further analysis details included
dc.identifierhttps://arxiv.org/abs/cond-mat/0503417
dc.identifierhttp://arxiv.org/abs/cond-mat/0503417
dc.identifierPhys. Rev. B 78, 214507 (2008)
dc.identifierdoi:10.1103/PhysRevB.78.214507
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/209904
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleSpin Susceptibility in Underdoped Cuprates: Insights from a Stripe-Ordered Crystal
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