论文标题
kagome金属AV3SB5中的键级波动介导的电荷环电流顺序和Z3 nematicition（a = cs，rb，k）
Charge-loop current order and Z3 nematicity mediated by bond-order fluctuations in kagome metal AV3Sb5 (A=Cs,Rb,K)
论文作者
论文摘要
关于几何沮丧的kagome金属AV3SB5（A = K，RB，CS）的最新实验揭示了电荷环电流（CLC）阶附近的键（BO）阶段的出现。但是，发现了CLC的起源及其与其他阶段的关系。在这里，我们通过关注Kagome金属中常见的BO相，发现了CLC状态的一种新型机制。金属中的BO波动介导了奇数颗粒 - 孔孔凝结，从而驱动拓扑电荷电流。有限的电子 - 音波耦合和异地库仑相互作用进一步稳定了这种状态。此外，值得注意的是，除了巨大的异常霍尔效应外，预测的CLC+BO期还会引起Z3纽约状态。目前的理论预测了CLC，BO和nematicities之间的密切关系，这对于理解Kagome金属中量子电子状态的级联反应很重要。
Recent experiments on geometrically frustrated kagome metal AV3Sb5 (A=K, Rb, Cs) have revealed the emergence of the charge loop current (cLC) order near the bond order (BO) phase. However, the origin of the cLC and its relation to other phases have been uncovered. Here, we discover a novel mechanism of the cLC state, by focusing on the BO phase common in kagome metals. The BO fluctuations in metals mediate the odd-parity particle-hole condensation, which drives the topological charge-current. This state is further stabilized by the finite electron-phonon coupling and the off-site Coulomb interaction. Furthermore, it is worth noting that the predicted cLC+BO phase gives rise to the Z3-nematic state in addition to the giant anomalous Hall effect. The present theory predicts the close relationship between the cLC, the BO, and the nematicity, which is significant to understand the cascade of quantum electron states in kagome metals.
