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Magnetization and magnetrotransport properties of Ni doped PrFeO3 thin films |
| University of Kashmir |
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Abstract Present study reports the Magnetization and magnetrotransport properties of PrFe1-xNixO3 thin films grown by pulsed laser ablation technique on a LaAlO3 substrate. From DC M/H plots of these films, weak ferromagnetism or ferrimagnetism behavior are observed. With Ni substitution, reduction in saturation magnetization is also seen. With Ni doping, a variation in saturation field (Hs), coercive filed (Hc), Weiss temperature (?) and effective magnetic moment (peff) are seen. A small change of magnetroresitance with application of higher filed is observed. Various essential parameters like density of state (Nf) at Fermi level, Mott’s characteristic temperature (T0) and activation energy (Ea) in presence and in absence of magnetic field were calculated. The present observed magnetic properties are related to the change of Fe-O bond length (causing an overlap between the oxygen p orbital and iron d orbital) and as well as deviation of the Fe–O–Fe angle from 180°. Reduction of magnetic domains after Ni doping is also explored to explain the present observed magnetic behavior of the system. The impact on various transport properties in these thin films after doping indicates a distortion in the lattice structure and consequently on influence on single particle band width, due to stress-induced reduction in unit cell volume.
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Received: 13 May 2013
Published: 07 November 2013
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Cite this article:
Magnetization and magnetrotransport properties of Ni doped PrFeO3 thin films Chin. Phys. B 0
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