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Research Journal of Engineering and Technology
ISSN: 2321-581X(Online), 0976-2973(Print)
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Study of Structural and Electrical Properties of R0.67Sr0.33MnO3, (R = Nd, Pr)
Naresh Kumar and Richa Kanwar
Department of Physics, Sidharth Govt. College Nadaun- 177033(H.P.) India
We have reported the results of resistivity behavior of R0.67Sr0.33MnO3, (R =Nd, Pr) manganites. The samples have been synthesised by solid state reaction method. These compounds were characterized for phase formation by using X-Ray diffraction (XRD) technique and low temperature resistivity versus temperature measurement. The absence of any impurity peak shows the monophasic nature of the prepared samples. The low temperature resistivity-temperature study shows metal to insulator transition at 250K and 290K for Nd0.67Sr0.33MnO3 and Pr 0.67Sr0.33MnO3 respectively. We have fitted the R-T behavior for various conduction mechanisms like variable range hopping, polaron hopping etc.
Manganites, Electrical transport, XRD, VRH model PACS: 75.47.Lx, 75.30.Gw, 61.05.C-, 75.40.-s
Naresh Kumar , Richa Kanwar. Study of Structural and Electrical Properties of R0.67Sr0.33MnO3, (R = Nd, Pr). Research J. Engineering and Tech. 6(1): Jan.-Mar. 2015 page 188-190.
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