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@ARTICLE{Tavabi:904905,
      author       = {Tavabi, Amir H. and Rosi, Paolo and Rotunno, Enzo and
                      Roncaglia, Alberto and Belsito, Luca and Frabboni, Stefano
                      and Pozzi, Giulio and Gazzadi, Gian Carlo and Lu, Peng-Han
                      and Nijland, Robert and Ghosh, Moumita and Tiemeijer, Peter
                      and Karimi, Ebrahim and Dunin-Borkowski, Rafal E. and
                      Grillo, Vincenzo},
      title        = {{E}xperimental {D}emonstration of an {E}lectrostatic
                      {O}rbital {A}ngular {M}omentum {S}orter for {E}lectron
                      {B}eams},
      journal      = {Physical review letters},
      volume       = {126},
      number       = {9},
      issn         = {0031-9007},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2022-00221},
      pages        = {094802},
      year         = {2021},
      abstract     = {The component of orbital angular momentum (OAM) in the
                      propagation direction is one of the fundamental quantities
                      of an electron wave function that describes its rotational
                      symmetry and spatial chirality. Here, we demonstrate
                      experimentally an electrostatic sorter that can be used to
                      analyze the OAM states of electron beams in a transmission
                      electron microscope. The device achieves postselection or
                      sorting of OAM states after electron-material interactions,
                      thereby allowing the study of new material properties such
                      as the magnetic states of atoms. The required
                      electron-optical configuration is achieved by using
                      microelectromechanical systems technology and focused ion
                      beam milling to control the electron phase electrostatically
                      with a lateral resolution of 50 nm. An OAM resolution of
                      1.5ℏ is realized in tests on controlled electron vortex
                      beams, with the perspective of reaching an optimal OAM
                      resolution of 1ℏ in the near future.},
      cin          = {ER-C-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {5351 - Platform for Correlative, In Situ and Operando
                      Characterization (POF4-535) / Q-SORT - QUANTUM SORTER
                      (766970) / ESTEEM3 - Enabling Science and Technology through
                      European Electron Microscopy (823717)},
      pid          = {G:(DE-HGF)POF4-5351 / G:(EU-Grant)766970 /
                      G:(EU-Grant)823717},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {33750150},
      UT           = {WOS:000627618200013},
      doi          = {10.1103/PhysRevLett.126.094802},
      url          = {https://juser.fz-juelich.de/record/904905},
}