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Magnetic viscosity-coercivity relation for Fe1−xCox fine particles |
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| Authors: | S. Zoriasatain S.A. Sebt |
| Affiliation: | a Physics Research Center, Science and Research Branch, Islamic Azad University, P.O. Box 19585-466, Tehran, Iran b Physics Department, Tehran-North Branch, Islamic Azad University, P.O. Box 19585-466, Tehran, Iran c Department of Physics, Magnet Research Laboratory (MRL), Sharif University of Technology, P.O. Box 11365-9161, Tehran, Iran |
| Abstract: | The variation of the applied field results in a subsequent change of magnetization with time. There is a relationship between the coercivity (Hc), as the equilibrium characteristic of the system, and its magnetic stability (1/S), as a parameter characterizing the time dependence. 1/S as a function of Hc has been measured and studied for different Fe1−xCox samples. We synthesized several samples with different values of x by applying various magnetic fields during the grains’ growth, and observed a linear relationship between 1/S and Hc. |
| Keywords: | 75.50.Tt 75.60.Ej 75.50.Ss |
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