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- Title
PHENOMENOLOGICAL EQUATIONS FOR THE MAGNETIC PROPERTIES OF La<sub>0.7-x</sub>Nd<sub>x</sub>Pb<sub>0.3</sub>MnO<sub>3</sub> COMPOUNDS.
- Authors
OU, C. R.; YOUNG, S. L.; CHEN, H. Z.; KAO, M. C.; LIN, C. H.; SHEN, C. Y.; HORNG, LANCE; LIN, C. C.; SHI, J. B.
- Abstract
Polycrystalline single phase oxides, La0.7-xNdxPb0.3)MnO3 (0.3≤x≤0.7), have been synthesized by a standard ceramic fabrication method. A phenomenological model is proposed to describe the magnetization process, and to fit the experiment data of hysteresis loops under different composition ratio. The magnetic hysteresis behavior can be modeled by the formula of ${\rm M(H)} = {\rm M}_S (1-\frac{a}{H}-\frac{d}{H^n}) + (\chi {\rm H} + \nu H^2 + \gamma H^3 + t H^4)$. The resulted model can satisfy the experiment data ranging from 0.005T to 5T. Explanations on the fitting coefficients of these compounds are addressed.
- Subjects
PHENOMENOLOGICAL theory (Physics); MATHEMATICAL physics; MAGNETIC properties; ELECTROMAGNETIC induction; POLYCRYSTALS
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2007, Vol 21, Issue 18/19, p3437
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S0217979207044706