Nearly Singular Magnetic Fluctuations in the Normal State of a High-T_c Cuprate Superconductor

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dc.creatorAeppli, G.
dc.creatorMason, T. E.
dc.creatorHayden, S. M.
dc.creatorMook, H. A.
dc.creatorKulda, J.
dc.date1998-01-16
dc.date.accessioned2026-07-07T03:09:48Z
dc.date.available2026-07-07T03:09:48Z
dc.descriptionPolarized and unpolarized neutron scattering was used to measure the wave vector- and frequency-dependent magnetic fluctuations in the normal state (from the superconducting transition temperature, T_c=35, up to 350 K) of single crystals of La_{1.86}Sr_{0.14}CuO_4. The peaks which dominate the fluctuations have amplitudes that decrease as T^{-2} and widths that increase in proportion to the thermal energy, k_B T (where k_B is Boltzmann's constant), and energy transfer added in quadrature. The nearly singular fluctuations are consistent with a nearby quantum critical point.
dc.description5 pages, 4 color postscript figures
dc.identifierhttps://arxiv.org/abs/cond-mat/9801169
dc.identifierhttp://arxiv.org/abs/cond-mat/9801169
dc.identifierScience, Vol 278, 21 November 1997, 1432-1435
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/28029
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleNearly Singular Magnetic Fluctuations in the Normal State of a High-T_c Cuprate Superconductor
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