论文标题
极性金属的多量量子临界
Multiband Quantum Criticality of Polar Metals
论文作者
论文摘要
由于最近对反转对称性的极性金属的实验实现的动机，我们探讨了当极性转变温度调整为零时，由临界性驱动的强相关性的出现。克服了先前讨论的挑战，我们展示了一种强大的机制，用于在多型金属中的临界模式与电子之间耦合。当带交叉口接近费米水平并为三种通用类型的带横梁提供实验特征时，我们确定并表征了几个新型的相互作用阶段，包括非Fermi液体。
Motivated by recent experimental realizations of polar metals with broken inversion symmetry, we explore the emergence of strong correlations driven by criticality when the polar transition temperature is tuned to zero. Overcoming previously discussed challenges, we demonstrate a robust mechanism for coupling between the critical mode and electrons in multiband metals. We identify and characterize several novel interacting phases, including non-Fermi liquids, when band crossings are close to the Fermi level and present their experimental signatures for three generic types of band crossings.
