%0 Journal Article %1 PhysRevLett.124.176401 %A Ünzelmann, Maximilian %A Bentmann, Hendrik %A Eck, Philipp %A Kißlinger, Tilman %A Geldiyev, Begmuhammet %A Rieger, Janek %A Moser, Simon %A Vidal, Raphael C. %A Kißner, Katharina %A Hammer, Lutz %A Schneider, M. Alexander %A Fauster, Thomas %A Sangiovanni, Giorgio %A Di Sante, Domenico %A Reinert, Friedrich %D 2020 %I American Physical Society %J Phys. Rev. Lett. %K a c %N 17 %P 176401 %R 10.1103/PhysRevLett.124.176401 %T Orbital-driven Rashba effect in a binary honeycomb monolayer AgTe %U https://link.aps.org/doi/10.1103/PhysRevLett.124.176401 %V 124 %X The Rashba effect is fundamental to the physics of two-dimensional electron systems and underlies a variety of spintronic phenomena. It has been proposed that the formation of Rashba-type spin splittings originates microscopically from the existence of orbital angular momentum (OAM) in the Bloch wave functions. Here, we present detailed experimental evidence for this OAM-based origin of the Rashba effect by angle-resolved photoemission (ARPES) and two-photon photoemission experiments for a monolayer AgTe on Ag(111). Using quantitative low-energy electron diffraction analysis, we determine the structural parameters and the stacking of the honeycomb overlayer with picometer precision. Based on an orbital-symmetry analysis in ARPES and supported by first-principles calculations, we unequivocally relate the presence and absence of Rashba-type spin splittings in different bands of AgTe to the existence of OAM.

@article{PhysRevLett.124.176401, abstract = {The Rashba effect is fundamental to the physics of two-dimensional electron systems and underlies a variety of spintronic phenomena. It has been proposed that the formation of Rashba-type spin splittings originates microscopically from the existence of orbital angular momentum (OAM) in the Bloch wave functions. Here, we present detailed experimental evidence for this OAM-based origin of the Rashba effect by angle-resolved photoemission (ARPES) and two-photon photoemission experiments for a monolayer AgTe on Ag(111). Using quantitative low-energy electron diffraction analysis, we determine the structural parameters and the stacking of the honeycomb overlayer with picometer precision. Based on an orbital-symmetry analysis in ARPES and supported by first-principles calculations, we unequivocally relate the presence and absence of Rashba-type spin splittings in different bands of AgTe to the existence of OAM.}, added-at = {2020-12-28T16:40:05.000+0100}, author = {\"Unzelmann, Maximilian and Bentmann, Hendrik and Eck, Philipp and Ki\ss{}linger, Tilman and Geldiyev, Begmuhammet and Rieger, Janek and Moser, Simon and Vidal, Raphael C. and Ki\ss{}ner, Katharina and Hammer, Lutz and Schneider, M. Alexander and Fauster, Thomas and Sangiovanni, Giorgio and Di Sante, Domenico and Reinert, Friedrich}, biburl = {https://www.bibsonomy.org/bibtex/28bd7cf0c5ebd2ddbcc7c337e6d57b2fd/ctqmat}, day = 29, description = {Phys. Rev. Lett. 124, 176401 (2020) - Orbital-Driven Rashba Effect in a Binary Honeycomb Monolayer AgTe}, doi = {10.1103/PhysRevLett.124.176401}, interhash = {c2685826ff306dedeea16dad64e1bb9f}, intrahash = {8bd7cf0c5ebd2ddbcc7c337e6d57b2fd}, journal = {Phys. Rev. Lett.}, keywords = {a c}, month = {4}, number = 17, numpages = {6}, pages = 176401, publisher = {American Physical Society}, timestamp = {2023-10-19T12:25:17.000+0200}, title = {Orbital-driven Rashba effect in a binary honeycomb monolayer AgTe}, url = {https://link.aps.org/doi/10.1103/PhysRevLett.124.176401}, volume = 124, year = 2020 }