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首页> 外文期刊>Journal of Experimental and Theoretical Physics >Light-Induced Ultrafast Dynamics of Spin Crossovers under High Pressure
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Light-Induced Ultrafast Dynamics of Spin Crossovers under High Pressure

机译：高压下旋转横梁的光诱导超快动态

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Within the multielectron model of magnetic insulator with two different spin terms at each cation and spin crossover under high pressure we have studied dynamics of a sudden excited non equilibrium spin state. We obtain the different relaxation of the magnetization, high spin/low spin occupation numbers, and the metal-oxygen bond length for different values of the external pressure. For each pressure-temperature values stationary state agrees to the mean field phase diagrams. We found the long living oscillations of magnetization for the high spin ground state at small pressure. Close to crossover pressure the smooth relaxation is accompanied with a set of sharp strongly non linear oscillations of magnetization and HS/LS occupation numbers that are accompanied by the Franck–Condon resonances.
机译：在磁绝缘体的多电子模型中，我们研究了在高压下突然激发的非平衡自旋态的动力学。我们得到了不同外压下磁化强度的不同弛豫，高自旋/低自旋占据数，以及金属-氧键长度。对于每个压力-温度值，稳态符合平均场相图。我们发现了小气压下高自旋基态的长寿命磁化振荡。接近交叉压力时，平滑弛豫伴随着一组剧烈的强非线性磁化振荡和HS/LS占据数，并伴随着Franck–Condon共振。

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