Publication: Magnetic and transport properties of La0.3Ca 0.7Mn0.9T0.1O3 (T = Cr, Fe, and W)
Issued Date
2005-01-04
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ISSN
00255408
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2-s2.0-10444279156
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Mahidol University
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SCOPUS
Bibliographic Citation
Materials Research Bulletin. Vol.40, No.1 (2005), 159-166
Suggested Citation
T. Sudyoadsuk, R. Suryanarayanan, P. Winotai Magnetic and transport properties of La0.3Ca 0.7Mn0.9T0.1O3 (T = Cr, Fe, and W). Materials Research Bulletin. Vol.40, No.1 (2005), 159-166. doi:10.1016/j.materresbull.2004.09.012 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/16637
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Title
Magnetic and transport properties of La0.3Ca 0.7Mn0.9T0.1O3 (T = Cr, Fe, and W)
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Abstract
We have carried out structural, magnetic and magneto transport measurements of the electron-doped manganite La0.3Ca0.7MnO3substituted with 10% of Cr, Fe and Won the Mn site. The substitution by Cr, Fe and W suppresses the charge order transition present at 260 K in the parent compound. All the samples show a semiconducting behavior. Whereas the parent compound does not show any magneto resistance (MR) even in a field of 14 T, a maximum MR of 6% in 5 T at 25 K is observed for the Cr substituted sample that is attributed to a spin-cluster glass like states induced by Cr. The Fe and W substituted samples showed a MR of 1.5 and 3%, respectively which may be attributed to a smaller number of FM domains/spin-clusters and to an increase in anti-ferromagnetic interaction. © 2004 Elsevier Ltd. All rights reserved.