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- W2032144730 abstract "Abstract In the recent years manganese oxides La 0.7 A 0.3 MnO 3 (A=Ca, Sr and Ba) received great attention because of their unique electrical and magnetic properties. Colossal changes in the magneto resistance upto the order of 10 6 –10 8 have been observed in thin films, single crystals and bulk materials. We have studied the effect of Yttrium substitution on the electrical and magnetic properties of La 0.7 Ba 0.3 MnO 3 compound. Samples of the composition La 0.7− x Y x Ba 0.3 MnO 3 with x =0.0–0.4 were prepared using solid state reaction method. XRD patterns of these samples show the single phase nature of the samples. Electrical resistance of samples was measured in the presence of zero and various applied magnetic fields. All the samples have shown a metal–insulator transition and Yttrium substitution has resulted in a systematic decrease in this transition temperature T MI . Magneto resistance of samples was also found to increase with Yttrium substitution. Susceptibility measurements on these samples have indicated a ferro-paramagnetic transition. The results are discussed in terms of size effects and changes in Mn 3+ –O–Mn 4+ bond angle." @default.
- W2032144730 created "2016-06-24" @default.
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- W2032144730 date "2015-09-01" @default.
- W2032144730 modified "2023-09-28" @default.
- W2032144730 title "Effect of yttrium substitution on the electrical and magnetic properties of La0.7Ba0.3MnO3 compound" @default.
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- W2032144730 doi "https://doi.org/10.1016/j.jmmm.2015.04.038" @default.
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