The Orbital Hall effect, which originates from materials with weak spin-orbit coupling, has attracted considerable interest for spin-orbitronic applications. Here, we demonstrate the inverse effect of the orbital Hall effect and observe orbitronic terahertz emission in the Ti and Mn materials. Through spin-orbit transition in the ferromagnetic layer, the generated orbital current can be converted to charge current in the Ti and Mn layers via the inverse orbital Hall effect. Furthermore, the inserted W layer provides an additional conversion of the orbital-charge current in the Ti and Mn layers, significantly enhancing the orbitronic terahertz emission. Moreover, the orbitronic terahertz emission can be manipulated by cooperating with the inverse orbital Hall effect and the inverse spin Hall effect in the different sample configurations. Our results not only discover the physical mechanism of condensed matter physics but also pave the way for designing promising spin-orbitronic devices and terahertz emitters.

源自自旋轨道耦合较弱的材料的轨道霍尔效应引起了人们对自旋轨道电子学应用的极大兴趣。在这里，我们展示了轨道霍尔效应的逆效应，并观察了 Ti 和 Mn 材料中的轨道电子太赫兹发射。通过铁磁层中的自旋轨道跃迁，产生的轨道电流可以通过逆轨道霍尔效应转换为 Ti 和 Mn 层中的充电电流。此外，插入的 W 层提供了 Ti 和 Mn 层中轨道电荷电流的额外转换，显着增强了轨道电子太赫兹发射。此外，轨道电子太赫兹发射可以通过与不同样品配置中的逆轨道霍尔效应和逆自旋霍尔效应合作来控制。