论文标题
来自多纤维非纤维液体的列阶段和弹性固定
Nematic phases and elastoresistivity from a multiorbital non-Fermi liquid
论文作者
论文摘要
我们提出并研究了Sachdev-ye-Kitaev模型的两轨晶格扩展，该模型很大程度上限制了。该模型的相图具有高温奇异的金属，该金属经历了一阶热过渡到列神经绝缘子或连续的热过渡到列明金属相，并由可调的三个智力点隔开。这些阶段来自多纤维非纤维液体的自发部分轨道极化。我们探讨了该模型的光谱和运输特性，包括D.C.弹性稳定性在列明转变附近表现出峰值，以及非零频率弹性。我们的工作提供了有关列不相关的多轨系统中的列表阶段和运输的有用观点。
We propose and study a two-orbital lattice extension of the Sachdev-Ye-Kitaev model in the large-$N$ limit. The phase diagram of this model features a high temperature isotropic strange metal which undergoes a first-order thermal transition into a nematic insulator or a continuous thermal transition into nematic metal phase, separated by a tunable tricritical point. These phases arise from spontaneous partial orbital polarization of the multiorbital non-Fermi liquid. We explore the spectral and transport properties of this model, including the d.c. elastoresistivity, which exhibits a peak near the nematic transition, as well as the nonzero frequency elastoconductivity. Our work offers a useful perspective on nematic phases and transport in correlated multiorbital systems.
