Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/195012
Type: Artigo de periódico
Title: Dramatic Changes In The Magnetic Coupling Mechanism For La-doped Camno3.
Author: Granado, E
Moreno, N O
Martinho, H
García, A
Sanjurjo, J A
Torriani, I
Rettori, C
Neumeier, J J
Oseroff, S B
Abstract: The exchange interactions in polycrystalline samples of Ca1-xLaxMnO3 (0.00< or =x< or =0.05) are studied by means of Raman scattering and electron paramagnetic resonance. Dramatic reductions in the spin-phonon interactions and magnetic correlations are observed for La doping levels as small as approximately 2%-3%. These results show that the charge carriers play an important role in the overall exchange coupling in the electron-doped manganites, even at very low doping levels.
Rights: aberto
Identifier DOI: 
Address: http://www.ncbi.nlm.nih.gov/pubmed/11384504
Date Issue: 2001
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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