Orbital Ordering Induced Antiferromagnetic Spin Fluctuations in the Ferromagnetic State of 50 % Hole-doped Manganites: Pr{1/2}Sr{1/2}MnO3 and Nd{1/2}Sr{1/2}MnO3

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dc.creatorKawano, H.
dc.creatorKajimoto, R.
dc.creatorYoshizawa, H.
dc.creatorTomioka, Y.
dc.creatorKuwahara, H.
dc.creatorTokura, Y.
dc.date1998-08-26
dc.date.accessioned2026-07-07T03:11:24Z
dc.date.available2026-07-07T03:11:24Z
dc.descriptionWe report inelastic neutron scattering results on the spin dynamics in the 50 % hole-doped manganites, Pr{1/2}Sr{1/2}MnO3 and Nd{1/2}Sr{1/2}MnO3. In the paramagnetic phase, these systems exhibit a ridge-type diffuse scattering, indicating a two-dimensional ferromagnetic (FM) correlation. With decreasing temperature, the systems enter the FM state, but simultaneously they develop A-type antiferromagnetic spin fluctuations. The spin wave dispersion in the FM state is strongly anisotropic. These behaviors can be consistently interpreted from a viewpoint of the underlying orbital ordering.
dc.descriptionREVTeX, 4 pages, 4 figures, submitted to Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/cond-mat/9808286
dc.identifierhttp://arxiv.org/abs/cond-mat/9808286
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/28560
dc.subjectStrongly Correlated Electrons
dc.titleOrbital Ordering Induced Antiferromagnetic Spin Fluctuations in the Ferromagnetic State of 50 % Hole-doped Manganites: Pr{1/2}Sr{1/2}MnO3 and Nd{1/2}Sr{1/2}MnO3
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