Melting of magnetic correlations in charge-orbital ordered La(0.5)Sr(1.5)MnO(4) : competition of ferro and antiferromagnetic states

Abstract

The magnetic correlations in the charge- and orbital-ordered manganite La(0.5)Sr(1.5)MnO(4) have been studied by elastic and inelastic neutron scattering techniques. Out of the well-defined CE-type magnetic structure with the corresponding magnons a competition between CE-type and ferromagnetic fluctuations develops. Whereas ferromagnetic correlations are fully suppressed by the static CE-type order at low temperature, elastic and inelastic CE-type correlations disappear with the melting of the charge-orbital order at high temperature. In its charge-orbital disordered phase, La(0.5)Sr(1.5)MnO(4) exhibits a dispersion of ferromagnetic correlations which remarkably resembles the magnon dispersion in ferromagnetically ordered metallic perovskite manganites.

arXiv comment14 pages, 11 figures

References in corpus (30)

• Double Exchange Alone Does Not Explain the Resistivity of $L{a}_{1-x}S{r}_{x}Mn{O}_3$
• Coexisting charge modulation and ferromagnetism produces long period phases in manganites: new example of electronic soft matter
• Charge and orbital order in half-doped manganites
• Impact of Charge Ordering on Magnetic Correlations in Perovskite (Bi,Ca)MnO_3
• Competing Ferromagnetic and Charge-Ordered States in Models for Manganites: the Origin of the CMR Effect
• Ferromagnetic, A-type, and Charge-Ordered CE-type States in Doped Manganites using Jahn-Teller Phonons
• Charge, Orbital and Magnetic Order in Nd0.5Ca0.5MnO3
• Direct observation of orbital ordering in La${}_{0.5}$Sr${}_{1.5}$MnO${}_4$ using soft x-ray diffraction
• Charge Ordering and Phase Competition in the Layered Perovskite Lasr2mn2o7
• Resonant x-ray diffraction study of the magnetoresistant perovskite Pr0.6Ca0.4MnO3
• Structural and magnetic properties of the single-layer manganese oxide La{1-x}Sr{1+x}MnO4
• Colossal magnetoresistance in manganites as a multicritical phenomenon
• Nature of $e_g$ Electron Order in La${}_{1-x}$Sr${}_{1+x}$MnO${}_4$
• Spin, charge and orbital ordering in La0.5Sr1.5MnO4
• On charge and orbital ordering in La0.5Sr1.5MnO4
• Spin Dynamics in an Ordered Stripe Phase
• Neutron diffraction study of average and local structure in La0.5Ca0.5MnO3
• Crystal and magnetic structure of La_{1-x}Sr_{1+x}MnO_{4} : role of the orbital degree of freedom
• Evolution of spin-wave excitations in ferromagnetic metallic manganites
• Theory of Anisotropic Superexchange in Insulating Cuprates
• High-Energy Spin Dynamics in La${}_{1.69}$Sr${}_{0.31}$NiO${}_4$
• Bandwidth-disorder phase diagram of half doped layered manganites
• Field-induced avalanche to the ferromagnetic state in the phase-separated ground state of manganites
• Spin-wave dispersion in orbitally ordered La(0.5)Sr(1.5)MnO(4)
• Doping dependence of spin and orbital correlations in layered manganites
• Ferromagnetic zigzag chains and properties of the charge ordered perovskite manganites
• Phase Diagram of Half Doped Manganites
• Charge Ordering Due to Magnetic Symmetry Breaking
• Jahn-Teller distortion induced charge-ordering in CE phase of manganites
• Electronically smectic-like phase in a nearly half-doped manganite

Cited by in corpus (12)

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• Spin-wave excitations in the ferromagnetic-metallic and in the charge, orbital and spin ordered states in Nd${}_{1-x}$Sr${}_x$MnO${}_3$ with x$\approx$0.5
• THz Field Control of In-Plane Orbital Order in La0.5Sr1.5MnO4
• Magnetic structure and magnon dispersion in LaSrFeO${}_4$
• Evidence for charge orbital and spin stripe order in an overdoped manganite
• Bridging charge-orbital ordering and Fermi surface instabilities in half-doped single-layered manganite La_0.5Sr_1.5MnO_4
• Hourglass dispersion in overdoped single-layered manganites
• Electronic self-organization in the single-layer manganite $\mathrm{P}{\mathrm{r}}_{1-x}\mathrm{C}{\mathrm{a}}_{1+x}\mathrm{Mn}{\mathrm{O}}_4$
• Signatures of electronic polarons in La${}_{1-x}$Sr${}_{1+x}$MnO${}_4$ observed by electron energy-loss spectroscopy
• Anticollinear order and degeneracy lifting in square lattice antiferromagnet LaSrCrO4