论文标题
当地时刻动态的特征时间尺度
Characteristic Timescales of the Local Moment Dynamics in Hund's-metals
论文作者
论文摘要
我们研究了针对不同程度的相关程度的Hund金属系统中局部瞬间波动的特征时间尺度。通过通过波动散至定理分析实时域中的动力自旋敏感性，我们确定了控制现场波动的振荡和阻尼的时间尺度，这是检测不同实验探针的局部矩的关键因素。我们将此过程应用于不同铁刺球和硫代基因元的不同家族的现实多体计算，从而解释了磁矩实验和理论估计之间报告的差异的材料特异性趋势。
We study the characteristic time scales of the fluctuating local moments in Hund's metal systems for different degrees of correlation. By analyzing the dynamical spin susceptibility in the real-time domain via the fluctuation-dissipation theorem, we determine the time scales controlling oscillation and damping of on-site fluctuations - a crucial factor for the detection of local moments with different experimental probes. We apply this procedure to realistic many-body calculations of different families of iron-pnictides and chalcogenides, explaining the material-specific trend in the discrepancies reported between experimental and theoretical estimates of the magnetic moments.
