论文标题
$ \ mathbb {z} _2 $在沮丧的近代晶格上的金属旋转液体
$\mathbb{Z}_2$ metallic spin liquid on a frustrated Kondo lattice
论文作者
论文摘要
金属自旋液体已在几种相关金属中报道，但是尚无令人满意的理论描述。在这里，我们提出了一条潜在的途径，以实现金属旋转液体并构建有效的$ \ mathbb {z} _2 $量规理论，并在三角形近托晶格上使用带电的分数激发。这导致了$ \ mathbb {z} _2 $金属自旋液体，具有长寿，重型旋转0和电荷$+e $的沉重振动，以及部分扩大的电子费米表面。它与较早提议的弱耦合fl $^*$状态不同，并且可以看作是分数化的重费液体。我们的理论提供了一个通用框架，以描述沮丧的近代晶格系统中的金属旋转液体。
Metallic spin liquid has been reported in several correlated metals, but a satisfactory theoretical description is not yet available. Here we propose a potential route to realize the metallic spin liquid and construct an effective $\mathbb{Z}_2$ gauge theory with charged fractionalized excitations on the triangular Kondo lattice. This leads to a $\mathbb{Z}_2$ metallic spin liquid featured with long-lived, heavy holon excitations of spin 0 and charge $+e$ and a partially enlarged electron Fermi surface. It differs from the weak-coupling FL$^*$ state proposed earlier and may be viewed as a fractionalized heavy fermion liquid. Our theory provides a general framework to describe the metallic spin liquid in frustrated Kondo lattice systems.
