拓扑增强的反常能斯特横向热电效应

Topologically enhanced zero-field transverse Nernst thermoelectric effect in magnetic topological semimetals

磁性拓扑材料是拓扑物理与长程磁有序的统一,是一类新兴的先进磁性量子材料.体系中的时间反演对称破缺使得外尔费米子表现出强的贝利相位,有望产生拓扑增强的、零磁场的能斯特横向热电效应,为基于新原理下的全固态热电制冷带来了契机.

Magnetic topological materials are a class of advanced magnetic quantum materials that combine the topological physics and long-range magnetic order.The Weyl fermions under time-reversal sysmmetry breaking bear strong Berry curvature that probably produces topologically enhanced zero-field transverse Nernst thermoelectric effect,offering a promissing strategy for all-solid-state thermoelectric cooling based on novel physical principles.