The Persistence of High-Frequency Spin Fluctuations in Overdoped La$_{2-x}$Sr$_{x}$CuO$_{4}$ ($x$=0.22)

Simple item page
dc.creatorLipscombe, O. J.
dc.creatorHayden, S. M.
dc.creatorVignolle, B.
dc.creatorMcMorrow, D. F.
dc.creatorPerring, T. G.
dc.date2007-06-29
dc.date.accessioned2026-07-07T08:27:03Z
dc.date.available2026-07-07T08:27:03Z
dc.descriptionWe report a detailed inelastic neutron scattering study of the collective magnetic excitations of overdoped superconducting La1.78Sr0.22CuO4 for the energy range 0-160 meV. Our measurements show that overdoping suppresses the strong response present for optimally doped La2-xSrxCuO4 which is peaked near 50 meV. The remaining response is peaked at incommensurate wavevectors for all energies investigated. We observe a strong high-frequency magnetic response for E >= 80 meV suggesting that significant antiferromagnetic exchange couplings persist well into the overdoped part of the cuprate phase diagram.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0706.4464
dc.identifierhttp://arxiv.org/abs/0706.4464
dc.identifierPhys. Rev. Lett. 99, 067002 (2007)
dc.identifierdoi:10.1103/PhysRevLett.99.067002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/137150
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleThe Persistence of High-Frequency Spin Fluctuations in Overdoped La$_{2-x}$Sr$_{x}$CuO$_{4}$ ($x$=0.22)
dc.typetext

Files

Collections

arXiv