具有普朗克散射的电子在磁场中服从标准轨道运动
Electrons with Planckian scattering obey standard orbital motion in a magnetic field
摘要：
在各种“奇怪”的金属中，电子经历普朗克耗散，这是一种强烈的异常散射，随温度线性增长，与金属标准理论预期的二次温度依赖性相反。在某些铜氧化物和磷属元素化物中，电阻率与磁场的线性关系也被认为是反常的--可能是普朗克耗散的另一个方面。在这里，我们表明，铜酸盐奇怪的金属Nd-LSCO和LSCO的电阻率是定量一致的电子运动在磁场中的标准玻尔兹曼理论，在各个方面-场强，磁场方向，温度和无序水平。线性场的依赖性被发现是简单的散射率各向异性的后果。我们得出结论，普朗克耗散是反常的温度依赖性，但不是在其字段的依赖性。这些铜氧化物的散射率不依赖于场，这意味着它们的普朗克耗散对至少85 T的场是鲁棒的。
英文摘要：
In various "strange" metals, electrons undergo Planckian dissipation, a strong and anomalous scattering that grows linearly with temperature, in contrast to the quadratic temperature dependence expected from the standard theory of metals. In some cuprates and pnictides, a linear dependence of the resistivity on magnetic field has also been considered anomalous - possibly an additional facet of Planckian dissipation. Here we show that the resistivity of the cuprate strange metals Nd-LSCO and LSCO is quantitatively consistent with the standard Boltzmann theory of electron motion in a magnetic field, in all aspects - field strength, field direction, temperature, and disorder level. The linear field dependence is found to be simply the consequence of scattering rate anisotropy. We conclude that Planckian dissipation is anomalous in its temperature dependence but not in its field dependence. The scattering rate in these cuprates does not depend on field, which means their Planckian dissipation is robust against fields up to at least 85 T.
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