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Prediction of the Magneto-Resistance of La0.65Ca0.35MnO3 and La0.8Sr0.2MnO3 via Temperature and Magnetic Field

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Abstract:

The resistance associated with temperature and magnetic field is a crucial parameter in researching the physical properties of the Perovskite-type manganites. To find out a suitable method to predicting the resistance of La0.65Ca0.35MnO3 and La0.8Sr0.2MnO3 in the process from paramagnetic phase to the ferromagnetic phase via the temperature and the magnetic field was the aim of this paper. By the nonlinear fitting, an appreciated analytic expression showing the temperature-dependence resistance both less or higher than the metal-insulator transition temperature,Tc, at different magnetic field was put forward. All of the nonlinear fitting between the measured and the calculated data were so satisfied that the minimum correlation coefficient is below 0.9997, the average relative errors do not exceed 1.0%.

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Periodical:

Advanced Materials Research (Volume 772)

Pages:

83-88

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.772.83

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Online since:

September 2013

Authors:

Ning Zhu, Ya Jie Liu

Keywords:

Datum Simulation, Magmeto-Resistance, Perovskite-Type Manganese Oxides, Transition Temperature

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