Charge Ordering and Polaron Formation in the Magnetoresistive Oxide La0.7Ca0.3MnO3

Abstract

Neutron scattering has been used to study the nature of the ferromagnetic transition in a single crystal of the perovskite La0.7Ca0.3MnO3. Diffuse scattering from lattice polarons develops as the Curie temperature is approached from below, along with short range polaron correlations that are consistent with stripe formation. Both the scattering due to the polaron correlations and the anomalous quasielastic component in the magnetic fluctuation spectrum maximize very close to T_C, in a manner remarkably similar to the resistivity, indicating that they have a common origin.

4 pages, 4 eps figures, to be published in Phys. Rev. Lett

Cited by in corpus (71)

• Colossal Magnetoresistant Materials: The Key Role of Phase Separation
• Extrinsic Magnetotransport Phenomena in Ferromagnetic Oxides
• Colossal Magnetoresistance is a Griffiths Singularity
• Colossal electroresistance and electronic phase separation in mixed-valent manganites
• Strain driven charge-ordered state in La${}_{0.67}$Ca${}_{0.33}$MnO${}_3$
• Competing Ferromagnetic and Charge-Ordered States in Models for Manganites: the Origin of the CMR Effect
• Approach to the metal-insulator transition in La(1-x)CaxMnO3 (0<x<.2): magnetic inhomogeneity and spin wave anomaly
• Determinative Role of the Jahn-Teller Disorder in the Raman Scattering of Mixed-Valence Manganites
• Nanoscale Phase Separation in Colossal Magnetoresistance Materials: A Lesson for the Cuprates?
• Orbital ordering phenomena in $d$- and $f$-electron systems
• The self-organised phases of manganites
• Structural and magnetic properties of the single-layer manganese oxide La{1-x}Sr{1+x}MnO4
• Glass Transition in the Polaron Dynamics of CMR Manganites
• Stripes Induced by Orbital Ordering in Layered Manganites
• First-order nature of the ferromagnetic phase transition in (La-Ca)MnO_3 near optimal doping
• Nature of $e_g$ Electron Order in La${}_{1-x}$Sr${}_{1+x}$MnO${}_4$
• Spin Rotation Technique for Non-Collinear Magnetic Systems: Application to the Generalized Villain Model
• Transport properties in manganite thin films
• Correlated Polarons in Dissimilar Perovskite Manganites
• The Structure of Nanoscale Polaron Correlations in La1.2Sr1.8Mn2O7
• Magnetic field-dependent dielectric constant in La2/3Ca1/3MnO3
• Charge Ordering Fluctuation and Optical Pseudogap in La${}_{1-x}$Ca${}_x$MnO${}_3$
• Orbital Ordering, New Phases, and Stripe Formation in Doped Layered Nickelates
• Average Lattice Symmetry and Nanoscale Structural Correlations in Magnetoresistive Manganites
• Magnons in Ferromagnetic Metallic Manganites
• Local structure study of the orbital order/disorder transition in LaMnO${}_3$
• Transmon-based simulator of nonlocal electron-phonon coupling: A platform for observing sharp small-polaron transitions
• Structural and magnetic ordering in Pr0.65(CaySr1-y)0.35MnO3: "quantum critical point" versus phase segregation scenarios
• Modification of the ground state in Sm-Sr manganites by oxygen isotope substitution
• Spin-wave dispersion in orbitally ordered La(0.5)Sr(1.5)MnO(4)
• Magnetic-field-induced collapse of charge-ordered nanoclusters and the Colossal Magnetoresistance effect in Nd(0.3)Sr(0.3)MnO(3)
• Common features of nanoscale structural correlations in magnetoresistive manganites with ferromagnetic low-temperature state
• Temperature, magnetic field, and pressure dependence of the crystal and magnetic structures of the magnetocaloric compound Mn1.1Fe0.9(P0.8Ge0.2)
• Dynamical Mean-Field Theory of Electron-Phonon Interactions in Correlated Systems: Application to Isotope Effects on Electronic Properties
• Efficient first-principles methodology for the calculation of the all-phonon inelastic scattering in solids
• Study of Short-distance Spin and Charge Correlations and Local Density-of-States in the CMR regime of the One-Orbital Model for Manganites
• Uncorrelated and correlated nanoscale lattice distortions in the paramagnetic phase of magnetoresistive manganites
• Polaronic metal phases in La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$ uncovered by inelastic neutron and x-ray scattering
• Substrate-induced strain effects on Pr_{0.6}Ca_{0.4}MnO_{3} films
• Electronically smectic-like phase in a nearly half-doped manganite
• Diffuse Neutron Scattering Study of Magnetic Correlations in half-doped La0.5Ca0.5-xSrxMnO3 (x = 0.1, 0.3 and 0.4) Manganites
• Nanoscale anisotropic structural correlations in the paramagnetic and ferromagnetic phases of Nd0.5Sr0.5 MnO3
• First-order transition in the itinerant ferromagnet CoS${}_{1.9}$Se${}_{0.1}$
• Spin Diffusion in Double-Exchange Manganites
• Influence of oxygen isotope exchange on the ground state of manganites
• Interface controlled electronic variations in correlated heterostructures
• Bond-Bending and Bond-Stretching Phonons in Ferromagnetic La_0.7Sr_0.3MnO_3
• Visualizing high-temperature spin dynamics in La1-xCaxMnO3 from a mapping of EPR linewidth and g factor
• Spin order and lattice frustration in optimally doped manganites. A high temperature NMR study.
• Polaron-mediated spin correlations in metallic and insulating La${}_{1-x}{A}_x$MnO${}_3$ ($A$=Ca, Sr, or Ba)
• Colossal magnetoresistance and quenched disorder in manganese oxides
• Signatures of polaronic charge ordering in optical and dc conductivity using dynamical mean field theory
• Spin Dynamics of Double-Exchange Manganites with Magnetic Frustration
• Properties of La${}_{0.7}$Ca${}_{0.3}$MnO${}_3$ Under Extreme Tensile Strain
• Spin wave damping arising from phase coexistence below $T_c$ in colossal magnetoresistive La${}_{0.7}$Ca${}_{0.3}$MnO${}_3$
• Direct Observation of Spectroscopic Inhomogeneities on La0.7Sr0.3MnO3 Thin Films by Scanning Tunnelling Spectroscopy
• Interacting chains of orbital polarons in "Colossal" magnetoresistive La1-xSrxMnO3 revealed by spin and lattice dynamics
• Infrared absorption study of charge ordered $La{}_{0.5}Ca{}_{0.5-x}S{r}_{x}Mn{O}_3$ $(0.1\le x\le 0.5$
• Damping and softening of transverse acoustic phonons in colossal magnetoresistive La${}_{0.7}$Ca${}_{0.3}$MnO${}_3$ and La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$
• Whither Correlated Electron Theory?
• On the effects of the magnetic field and the isotopic substitution upon the infrared absorption of manganites
• Paramagnetic Spin Correlations in Colossal Magnetoresistive La0.7Ca0.3MnO3
• Polaronic correlations and phonon renormalization in La1-xSrxMnO3 (x = 0.2, 0.3)
• Signatures of electronic phase separation in the Hall effect of anisotropically strained La0.67Ca0.33MnO3 films
• An Origin of CMR: Competing Phases and Disorder-Induced Insulator-to-Metal Transition in Manganites
• Double Exchange in a Magnetically Frustrated System
• Nonequilibrium dynamics of suppression, revival, and loss of charge order in a laser pumped electron-phonon system
• On the origin of CE-type orbital fluctuations in the ferromagnetic metallic La${}_{1.2}$Sr${}_{1.8}$Mn${}_2$O${}_7$
• Stripe structures in phase separated magnetic oxides
• Giant electron-phonon coupling of the breathing plane oxygen phonons in the dynamic stripe phase of La${}_{1.67}$Sr${}_{0.33}$NiO${}_4$
• Coherence of polaronic transport in layered metals