The effect of Fe doping on the magnetoresistive behavior of layered perovskites La1.4Ca1.6Mn2O7

Authors
Yuan, CL Yu, T Song, WH Ye, SL Wang, SG Dai, JM Sun, YP
Citation
Cl. Yuan et al., The effect of Fe doping on the magnetoresistive behavior of layered perovskites La1.4Ca1.6Mn2O7, PHYS ST S-A, 178(2), 2000, pp. 771-778
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH
ISSN journal
00318965 → ACNP
Volume
178
Issue
2
Year of publication
2000
Pages
771 - 778
Database
ISI
SICI code
0031-8965(20000416)178:2<771:TEOFDO>2.0.ZU;2-T
Abstract
The effect of the partial substitution of Mn with Fe in the layered perovsk ites (x less than or equal to 0.2) La1.4Ca1.6Mn2-xFexO7 has been studied. T he results show that conduction and ferromagnetism have been consistently s uppressed by Fe doping. The colossal magnetoresistance is enhanced by Fe do ping in some cases. The formation of ferromagnetic and antiferromagnetic cl usters originating from the random substitutions of Mn3+ by Fe3+ ions has b een suggested to explain the experimental results.