标题： 复合形成对电子横向输运的增强 显示英文标题

标题： Electron transverse transport enhancement by composite formation

摘要： 电子的异常横向输运，如异常霍尔效应和异常能斯特效应，为实现先进的自旋电子学和热电设备提供了机会。 为了实现这些机会，加强横向输运至关重要。 已经进行了大量努力来寻找满足这一目标的新材料。 在这方面，拓扑材料最近受到了广泛关注。 在此，我们报告了一种不同的增强横向输运的方法。 而不是寻找新材料，我们提出混合已知材料以形成复合材料。 我们理论证明，两种材料的随机混合阵列可以表现出比组成材料更强的横向输运。 这种增强在结晶和非晶铁磁金属的混合物中得到了实验验证。 我们确定了这种增强的要求，这可以被一大类材料满足。 因此，这个方案提供了一种普遍的方法来增强横向输运，同时为器件应用的各种工程需求提供了空间。 显示英文摘要

摘要： Anomalous transverse transport of electrons such as the anomalous Hall effect and the anomalous Nernst effect provide opportunities to realize advanced spintronic and thermoelectric devices. To materialize these opportunities, it is crucial to strengthen the transverse transport. There have been considerable efforts to find new materials that fulfill this goal. Topological materials received a surge of recent attention in this regard. Here we report a different approach to enhance the transverse transport. Instead of searching for new materials, we propose mixing known materials to form composites. We show theoretically that randomly mixed arrays of two materials can exhibit significantly stronger transverse transport than the constituent materials. This enhancement is experimentally demonstrated for mixtures of crystallized and amorphous ferromagnetic metals. We identify the requirement of this enhancement, which can be satisfied by a wide class of materials. Thus, this scheme provides a universal method to strengthen transverse transport, together with rooms to accommodate various engineering requirements for device applications.