AI 中文总结
研究共掺杂 BaFe$_2$As$_2$ 薄膜中的声学声子动力学，用改进逻辑函数模型分析泵浦 - 探测反射率数据，揭示了薄膜中特定频率的相干声学振荡及能量重新分布情况。
AI 中文摘要
泵浦 - 探测反射率揭示了 Ba(Fe$_{0.92}$Co$_{0.08}$)$_2$As$_2$ 薄膜中 33 和 8.2 GHz 的相干声学振荡。使用改进的逻辑函数模型分析声学响应，表明相干声能的时间重新分布与高频模式到低频模式的非谐衰减一致。
英文摘要
Pump-probe reflectivity reveals coherent acoustic oscillations at 33 and 8.2 GHz in a Ba(Fe$_{0.92}$Co$_{0.08}$)$_2$As$_2$ thin film. The acoustic response was analyzed using a modified logistic-function model, suggesting a temporal redistribution of coherent acoustic energy consistent with anharmonic decay of the higher-frequency mode into the lower-frequency mode.
Comments3 pages, 1 figure, 1 table. Accepted for presentation at Frontiers in Optics + Laser Science (FiO LS 2026)
