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Magnetic excitation of ferromagnetic dimer molecules

机译:铁磁二聚体分子的磁激发

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摘要

The magnetic excitation in ferromagnetic dimer molecules was studied with using the local spin-density approximation. The equation of motion for the atomic magnetic moment was presented. To obtain adiabatic excited states, we implemented a penalty energy technique, which imposes a frozen spin configuration. Calculation conditions of the technique were examined. We applied the method to ferromagnetic dimer molecules, Fe_2, and estimated the magnetic excitation energy. We discussed the magnetic interaction between atoms with mapping the result onto the Heisenberg model.
机译:利用局部自旋密度近似研究了铁磁二聚体分子中的磁激发。给出了原子磁矩的运动方程。为了获得绝热激发态,我们实施了惩罚能量技术,该技术施加了冻结的自旋构型。检查了该技术的计算条件。我们将该方法应用于铁磁二聚体分子Fe_2,并估计了磁激发能。我们讨论了原子之间的磁性相互作用,并将结果映射到海森堡模型上。

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