Using the Jiles Atherton model to analyze the magnetic properties of magnetoelectric materials: (BaTiO3)(x) (CoFe2O4)(1-x)

作者:Pop N C*; Caltun O F
来源:Indian Journal of Physics and Proceedings of the Indian Association for the Cultivation of Science, 2012, 86(4): 283-289.
DOI:10.1007/s12648-012-0055-9

摘要

In this paper Jiles-Atherton (J-A) model has been implemented in order to simulate the magnetic hysteresis loops of magnetoelectric composite samples containing cobalt ferrite and barium titanate ((BaTiO3) (x) (CoFe2O4)(1-x) having x = 0.8, 0.6, and 0.4) sintered at four temperatures 1,000 A degrees C, 1,050 A degrees C, 1,100 A degrees C, and 1,150 A degrees C. In each case the J-A parameters are calculated. The dynamic of these parameters has been correlated with the microstructure of the samples and the ratio of the concentrations of the two phases (magnetostrictive/piezoelectric). Concomitantly with it the remanent magnetization, the saturation magnetization and the coercive field's dependences on the magnetic phase's concentration have been studied. The dependence of the J-A model parameters on sintering temperature have been analyzed.

  • 出版日期2012-4