论文标题

通过分析和数值模型探索的AC弹性效应测量的频率依赖性灵敏度

Frequency-dependent sensitivity of AC elastocaloric effect measurements explored through analytical and numerical models

论文作者

Straquadine, J. A. W., Ikeda, M. S., Fisher, I. R.

论文摘要

我们通过将精确的可溶模型和数值方法应用于振荡的热流问题,对频率依赖性灵敏度进行了全面研究。这些模型重现了实验中观察到的热传递功能的更细节,考虑到此处的单晶BA的代表性数据(fe $ _ {1-x} $ co $ _x $)$ _ 2 $ as $ _2 $。根据我们的结果,我们建议使用此技术为实验者提出一组实用指南。这项工作建立了一个基线,可以比较AC弹性技术的频率响应,并对实验中观察到的详细结构提供直观的解释。

We present a comprehensive study of the frequency-dependent sensitivity for measurements of the AC elastocaloric effect by applying both exactly soluble models and numerical methods to the oscillating heat flow problem. These models reproduce the finer details of the thermal transfer functions observed in experiments, considering here representative data for single-crystal Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$. Based on our results, we propose a set of practical guidelines for experimentalists using this technique. This work establishes a baseline against which the frequency response of the AC elastocaloric technique can be compared and provides intuitive explanations of the detailed structure observed in experiments.

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