An analytical model invoking variations in the charge-carrier density is used to generate magnetoresistance curves that are almost indistinguishable from those produced by sophisticated numerical models. This demonstrates that, though disorder is pivotal in causing linear magnetoresistance, the form of the magnetoresistance thus generated is insensitive to details of the disorder. Taken in conjunction with the temperature ($T$) dependence of the zero-field resistivity, realistic levels of disorder are shown to be sufficient to explain the linear magnetoresistance and field-$T$ resistance scaling observed in high-temperature pnictide and cuprate superconductors. Hence, though the $T$-linear zero-field resistance is a definite signature of the “strange metal” state of high-temperature superconductors, their linear magnetoresistance and its scaling is unlikely to be so.

中文翻译：

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在高温超导体中观察到的线性磁阻的温度缩放行为

使用引起载流子密度变化的分析模型来生成磁阻曲线，该曲线几乎与复杂的数值模型所产生的曲线没有区别。这表明，尽管无序在引起线性磁阻中是关键的，但是由此产生的磁阻的形式对无序的细节不敏感。结合温度（$Ť$）零磁场电阻率的依赖性，无序的现实水平足以说明线性磁阻和磁场-$Ť$在高温肽和铜酸盐超导体中观察到的电阻变化。因此，尽管$Ť$线性零场电阻是高温超导体“奇异金属”状态的明确标志，它们的线性磁阻及其缩放不可能如此。