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@ARTICLE{Feggeler:904872,
      author       = {Feggeler, Thomas and Meckenstock, Ralf and Spoddig, Detlef
                      and Zingsem, Benjamin and Ohldag, Hendrik and Wende, Heiko
                      and Farle, Michael and Winklhofer, Michael and Ollefs,
                      Katharina J.},
      title        = {{S}patially resolved {GH}z magnetization dynamics of a
                      magnetite nano-particle chain inside a magnetotactic
                      bacterium},
      journal      = {Physical review research},
      volume       = {3},
      number       = {3},
      issn         = {2643-1564},
      address      = {College Park, MD},
      publisher    = {APS},
      reportid     = {FZJ-2022-00188},
      pages        = {033036},
      year         = {2021},
      abstract     = {Understanding magnonic properties of nonperiodic magnetic
                      nanostructures requires real-space imaging of ferromagnetic
                      resonance modes with spatial resolution well below the
                      optical diffraction limit and sampling rates in the 5–100
                      GHz range. Here, we demonstrate element-specific scanning
                      transmission x-ray microscopy-detected ferromagnetic
                      resonance (STXM-FMR) applied to a chain of dipolarly coupled
                      Fe3O4 nano-particles (40–50 nm particle size) inside a
                      single cell of a magnetotactic bacterium Magnetospirillum
                      magnetotacticum. The ferromagnetic resonance mode of the
                      nano-particle chain driven at 6.748 GHz and probed with 50
                      nm x-ray focus size was found to have a uniform phase
                      response but non-uniform amplitude response along the chain
                      segments due to the superposition of dipolar coupled modes
                      of chain segments and individual particles, in agreement
                      with micromagnetic simulations.},
      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) / DFG project 405553726 - TRR
                      270: Hysterese-Design magnetischer Materialien für
                      effiziente Energieumwandlung (405553726)},
      pid          = {G:(DE-HGF)POF4-5351 / G:(GEPRIS)405553726},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000671591900004},
      doi          = {10.1103/PhysRevResearch.3.033036},
      url          = {https://juser.fz-juelich.de/record/904872},
}