T. SudyoadsukR. SuryanarayananP. WinotaiMahidol UniversityUniversite Paris-Sud XI2018-07-242018-07-242004-05-01Journal of Magnetism and Magnetic Materials. Vol.272-276, No.SUPPL. 1 (2004)030488532-s2.0-23144452619https://repository.li.mahidol.ac.th/handle/20.500.14594/21434The charge order-like transition observed at 260 K in La0.4Ca0.6MnO3is suppressed by 20% Cr or Fe substitution at Mn site. Whereas no magnetoresistance (MR) was observed in the parent compound, even in a field of 14 T, a sizeable MR is observed in the substituted samples. However, at 50 K in a field of 5 T, the MR of the Cr-doped sample was larger by a factor of 10 compared with that of Fe-doped one. © 2004 Elsevier B.V. All rights reserved.Mahidol UniversityMaterials SciencePhysics and AstronomyConference PaperSCOPUS10.1016/j.jmmm.2003.12.283