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

Preprint

8 September 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0009132

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.

Keywords

MAGNETORESISTIVE OXIDE
DIFFUSE SCATTERING
POLARON FORMATION
CHARGE ORDERING
LA0.7CA0.3MNO3
FERROMAGNETIC
SCATTERING
PEROVSKITE

All Related Versions

Version 1, 2000-09-08, ArXiv
Published version: Physical Review Letters, 85 (18), 3954.

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