The dynamics of magnetization reversal of a nanocell composed of two magnetouniaxial nanoparticles by a short Gaussian magnetic-field pulse is investigated. This dipole-coupled system is multistable and has four equilibrium states. The conditions, under which the nanocell is switched to one of three states or returns to the initial configuration, are found. It is shown that the character of precession dynamics of the magnetic moment and choice of the final nanocell state depend on the pulse amplitude and width and the mutual easy-axis orientation.

中文翻译：

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偶极子纳米电池在脉冲磁化反转过程中的多重稳定性

研究了由短高斯磁场脉冲引起的由两个磁单轴纳米粒子组成的纳米单元的磁化反转动力学。该偶极耦合系统是多稳态的，具有四个平衡状态。找到了将纳米电池切换到三种状态之一或返回初始配置的条件。结果表明，磁矩的进动动力学特性和最终纳米单元状态的选择取决于脉冲幅度和宽度以及相互易轴取向。