Orbitronics is an emerging field of research dealing with manipulation of the orbital degree of freedom of electrons for quantum information technology. However, unambiguously detecting ultrafast dynamics of orbital angular momentum has been challenging so far. By using state-of-the-art THz spectroscopy and theoretical calculations, scientists from Freie Universität Berlin and University of Mainz, together with collaborators, clarified ultrafast and long-range flow of orbitally polarized electron for the first time. The research is published in the journal Nature Nanotechnology.
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