Strange metals possess transport properties that are markedly different from those of a conventional Fermi liquid. Despite strong similarities in behavior exhibited by distinct families, a consistent description of strange metallic transport and, in particular, its evolution from low to high magnetic field strength $H$, is still lacking. The electron nematic $\mathrm{Fe}{\mathrm{Se}}_{1-x}{\mathrm{S}}_x$ is one such strange metal displaying anomalous $H/T$ scaling in its transverse magnetoresistance as well as a separation of transport and Hall lifetimes at low $H$ beyond its (nematic) quantum critical point at $x_c\sim 0.17$. Here we report a study of the Hall response of $\mathrm{Fe}{\mathrm{Se}}_{1-x}{\mathrm{S}}_x$ across $x_c$ in fields up to 33 T. Upon subtraction of a normal $H$-linear component from the total Hall response (imposed by perfect charge compensation), we find a second component, ascribable to strange metal physics, that grows as $1/T$ upon approach to the quantum critical point. Through this decomposition, we reveal that lifetime separation is indeed driven primarily by the presence of the strange metal component.

中文翻译：

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FeSe1-xSx中奇异金属成分的假定霍尔响应

奇怪的金属具有与常规费米液体明显不同的传输性能。尽管不同的家族表现出非常相似的行为，但对奇怪的金属传输，尤其是其从低磁场强度到高磁场强度的演变做出了一致的描述。$H$，仍然缺乏。电子向列$铁{硒}_{\mathrm{1个}-X}{\mathrm{小号}}_X$ 是一种显示异常的奇怪金属 $H/Ť$ 在低横向磁阻方面的定标，以及运输和霍尔寿命的分离 $H$ 超出其（向列）量子临界点 $X_C〜0.17$。在这里，我们报告了对霍尔响应的研究。$铁{硒}_{\mathrm{1个}-X}{\mathrm{小号}}_X$ 穿过 $X_C$ 在不超过33 T的田地中 $H$总霍尔响应的线性分量（由完美的电荷补偿强加），我们发现第二个分量，归因于奇怪的金属物理，其增长为 $\mathrm{1个}/Ť$在接近量子临界点时。通过这种分解，我们发现寿命的分离实际上主要是由奇怪的金属成分的存在驱动的。