Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.1350602
Title: Low-field magnetoresistance in nanosized La0.7Sr0.3MnO3/Pr0.5Sr 0.5MnO3 composites
Authors: Liu, J.-M.
Yuan, G.L.
Sang, H.
Wu, Z.C.
Chen, X.Y.
Liu, Z.G.
Du, Y.W.
Huang, Q.
Ong, C.K. 
Issue Date: 19-Feb-2001
Citation: Liu, J.-M., Yuan, G.L., Sang, H., Wu, Z.C., Chen, X.Y., Liu, Z.G., Du, Y.W., Huang, Q., Ong, C.K. (2001-02-19). Low-field magnetoresistance in nanosized La0.7Sr0.3MnO3/Pr0.5Sr 0.5MnO3 composites. Applied Physics Letters 78 (8) : 1110-1112. ScholarBank@NUS Repository. https://doi.org/10.1063/1.1350602
Abstract: Nanosized La0.7Sr0.3MnO3/Pr0.5Sr 0.5MnO3 (LSMO1-xPSMOx) ceramic composites are prepared using solid-sate sintering. Their microstructural, electro-and magnetotransport properties are characterized by means of various techniques. It is found that the antiferromagnetic/ferromagnetic coupling between PSMO/LSMO at low temperature and the weak ferromagnetic order of PSMO at high temperature results in enhanced low-field magnetoresistance (LFMR) of the composites. With increasing temperature up to 250 K the observed LFMR decays more slowly than that for pure LSMO and this behavior may be explained by the spin coupling near boundaries between LSMO and PSMO grains. © 2001 American Institute of Physics.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/97104
ISSN: 00036951
DOI: 10.1063/1.1350602
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