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- W4286566601 abstract "La0.7Ca0.3MnO3 (LCMO30) is a perovskite manganite with a phase transition (TC = 238 K) between a paramagnetic insulator and a ferromagnetic metal. We use single-crystal, inelastic neutron scattering to refine previous work on the low energy (ℏω < 10 meV) magnetic excitations. At 300 K the spectrum consists of a diffusive ferromagnetic component at the pseudo-cubic Brillouin zone center coexisting with a quasielastic excitation located at the pseudo-cubic Brillouin zone edge. Both components are anti-correlated with ferromagnetic long-range order, showing weakened intensity at 215 K in the ferromagnetic phase. Polarized neutron scattering shows both features to be purely magnetic in origin. This indicates the simultaneous presence of ferromagnetic and antiferromagnetic correlations (located, respectively, at the zone center and zone edge) in a three-dimensional perovskite, while this coexistence had been previously observed only in a bilayer compound." @default.
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- W4286566601 date "2022-11-01" @default.
- W4286566601 modified "2023-10-14" @default.
- W4286566601 title "High resolution ferromagnetic and antiferromagnetic correlations in La0.7Ca0.3MnO3" @default.
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- W4286566601 doi "https://doi.org/10.1016/j.jmmm.2022.169740" @default.
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