论文标题
Fe-Al薄膜中的异常Nernst效应在柔性基材上通过异常Nern的效果进行热通量传感
Heat flux sensing by anomalous Nernst effect in Fe-Al thin films on a flexible substrate
论文作者
论文摘要
我们对实现了利用异常Nernst效果（ANE）的热通量传感器所需的材料参数进行了数值分析。结果表明，ANE（$ s _ {\ text {ane}} $）的高热电器和小饱和磁化的重要性。这促使我们研究了Fe替换对ANE的效果，并发现$ s _ {\ text {ane}} = $ 3.4 $ 3.4 $μ$ v/k在fe $ _ {81} $ al $ _ {19} $中，因为它具有主要的内在机制。使用这种材料，我们在薄的柔性聚酰亚胺纸上制作了原型ANE的热通量传感器，并证明了它的准确感测。这项研究提供了重要的信息，以增强传感器灵敏度。
We performed a numerical analysis of the material parameters required for realizing a heat flux sensor exploiting the anomalous Nernst effect (ANE). The results showed the importance of high thermopower of ANE ($S_{\text{ANE}}$) and small saturation magnetization. This motivated us to investigate the effect of Al substitution of Fe on ANE and found $S_{\text{ANE}} =$ 3.4 $μ$V/K in Fe$_{81}$Al$_{19}$ because of the dominant intrinsic mechanism. Using this material, we made a prototype ANE-based heat flux sensor on a thin flexible polyimide sheet and demonstrated accurate sensing with it. This study gives important information for enhancing sensor sensitivity.
