Magnetization reversal in interacting magnetic systems

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作者：
机构：
[1] Pham, Huy Ngoc
[2] Dumitru, Ioan
[3] Stancu, Alexandru
[4] Spinu, Leonard
来源：
| 1600年 / American Institute of Physics Inc.卷 / 97期
关键词：
Elastic moduli - Magnetic couplings - Magnetic fields - Magnetostriction - Spectroscopic analysis - Ultrasonics;
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摘要：
The effect of interparticle interactions on the precessional switching process of coupled ellipsoidally shaped particles subject to pulsed magnetic fields is analyzed by using the Landau-Lifshitz-Gilbert equation. The analysis of switching process is made using two different representations previously proposed in the case of isolated single domain particle. In one switching diagram the final configurational state of the magnetization vector is displayed as a function of the pulse strength and direction whereas in the other representation the final state of magnetization is correlated to the initial position of magnetization vector. It is found that the dynamics of the coupled system, reflected in both switching diagrams is strongly dependent of the interparticle distance and their bond angle. © 2005 American Institute of Physics.
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