Magnetic, Electronic - and Magneto - Transport Properties of Nanocrystalline Nd0.6Sr0.4MnO3 Manganites

Kundu Sourav; Kumar Nath Tapan

doi:10.4028/www.scientific.net/AMR.67.131

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Magnetic, Electronic - and Magneto - Transport Properties of Nanocrystalline Nd_0.6Sr_0.4MnO₃ Manganites

Abstract:

We have reported in this paper, the effect of grain size in Nd0.6Sr0.4MnO3 .We have investigated the effect of grain size on metal-insulator transition and Curie temperature. We have also reported here the variation of low field magnetoresistance with temperature and grain size. We have observed that the Curie temperature increases monotonically with particle size. The metal insulator transition temperature initially increases with particle size and then gets fixed to a certain value. In these Nd0.6Sr0.4MnO3 nanometric systems, any significant variation of magnetoresistance with particle size is not observed.