Particle interaction and coercivity for acicular particles |
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| Authors: | Ching-Ray Chang and Jyh-Pone Shyu |
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| Affiliation: | Department of Physics, National Taiwan University, Taipei, Taiwan |
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| Abstract: | The influence of the packing factor on coercivity for an assembly of particles is calculated. A rigorously theoretical explanation for the origin of empirical constants in the phenomenologically linear expression is given. The nonlinear coercivity dependence for a small packing factor is attributed to the nonuniform distribution of particles and the surface effects. |
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