Neutron scattering studies of phase segregation in Pr0.7Ca0.3MnO3

The phase segregation in the narrow-bandwidth manganite Pr0.7Ca0.3MnO3 were investigated using high-resolution time-of-flight neutron powder diffraction. Results demonstrate that the phase segregation in Pr0.7Ca0.3MnO3 is unrelated to electronic phase segregation but is primarily driven by chemical...

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Détails bibliographiques
Auteurs principaux: Radaelli, P, Ibberson, R, Cheong, S, Mitchell, J
Format: Conference item
Publié: Elsevier 2000
Description
Résumé:The phase segregation in the narrow-bandwidth manganite Pr0.7Ca0.3MnO3 were investigated using high-resolution time-of-flight neutron powder diffraction. Results demonstrate that the phase segregation in Pr0.7Ca0.3MnO3 is unrelated to electronic phase segregation but is primarily driven by chemical disorder and intra-granular strains, similar to martensitic phase transitions.