Breakthrough in Orbitronics: First Imaging of Monopole-like Structures in Chiral Topological Semimetals

Recent research published in Nature Physics has successfully imaged orbital angular momentum monopoles in chiral topological semimetals PtGa and PdGa. Utilizing advanced techniques like circular dichroism in angle-resolved photoelectron spectroscopy, scientists revealed unique monopole-like structures and their controllable polarity. These findings not only confirm the existence of these orbital textures but also open new avenues for orbitronic devices, promising advancements in information processing and quantum computing.