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@INPROCEEDINGS{Feygenson:889197,
      author       = {Feygenson, Mikhail and Nandakumaran, Nileena},
      title        = {{U}sing {N}eutron and {X}-ray {P}air-{D}istribution
                      {F}unction {M}ethod for {S}tructural {S}tudies of
                      {N}anoparticles},
      reportid     = {FZJ-2021-00107},
      year         = {2020},
      abstract     = {Pair-distribution function (PDF) analysis of total neutron
                      scattering data has proved tobe an indispensable tool for
                      scientists to determine the local crystal structure
                      ofnanoparticles that often differs in significant ways from
                      their bulk counterparts. The PDFanalysis provides
                      quantitative information about arrangement of atoms on
                      atomic scale,enabling studies of defects, surface
                      relaxations and local disorder in nanoparticles. Inthis
                      talk, I will give an introduction to the method, including
                      practical aspects of datareduction and data corrections. I
                      will briefly present several software solutions for thePDF
                      data analysis. The differences between neutron and x-ray PDF
                      measurements andtheir advantages for studies of
                      nanoparticles will be discussed. The PDFinstrumentation
                      available to users at large-scale neutron and synchrotron
                      facilitiesaround the globe will be reviewed. I will focus on
                      three examples that amplifyimportance of the PDF analysis in
                      nanoparticle research. They include PDF studies ofcoated Co
                      nanoparticles1, exchange biased Au-Fe3O4 dumbbells2 and
                      GaN/ZnOnanoparticles3 used in the visible-light
                      photocatalysis. In the last part of the talk JCNS-2PhD
                      student Nileena Nandakumaran will reflect on her experience
                      on performingsynchrotron x-ray PDF measurements on
                      iron-oxide nanoparticles. As a first time user,she will
                      share her overall experience on challenges of collecting PDF
                      data and onrunning remote PDF experiments, which has been
                      becoming more and more importantduring these days.1
                      Feygenson, M., Formo, E. V., Freeman, K., Schieber, N., Gai,
                      Z., $\&$ Rondinone, A. J. Implications of RoomTemperature
                      Oxidation on Crystal Structure and Exchange Bias Effect in
                      Co/CoO Nanoparticles. Journalof Physical Chemistry C,
                      119(46), 26219–26228 (2015).2 Feygenson, M., Bauer, J. C.,
                      Gai, Z., Marques, C., Aronson, M. C., Teng, X., Su, D.,
                      Stanic, V., Urban, V. S.,Beyer, K. A., $\&$ Dai, S. Exchange
                      bias effect in Au-Fe3 O4 dumbbell nanoparticles induced by
                      the chargetransfer from gold. Physical Review B - Condensed
                      Matter and Materials Physics, 92(5), 1–13 (2015).3
                      Feygenson, M., Neuefeind, J. C., Tyson, T. A., Schieber, N.,
                      $\&$ Han, W. Q. Average and Local CrystalStructures of
                      (Ga1-xZnx)(N1-xOx) Solid Solution Nanoparticles. Inorganic
                      Chemistry, 54(23), 11226–11235 (2015).},
      month         = {Dec},
      date          = {2020-12-17},
      organization  = {Digital Institute Seminar JCNS-2,
                       online event (online event), 17 Dec
                       2020 - 17 Dec 2020},
      subtyp        = {Invited},
      cin          = {JCNS-2 / PGI-4 / JARA-FIT / JCNS-1},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$ / I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {144 - Controlling Collective States (POF3-144) / 524 -
                      Controlling Collective States (POF3-524) / 6212 - Quantum
                      Condensed Matter: Magnetism, Superconductivity (POF3-621) /
                      6213 - Materials and Processes for Energy and Transport
                      Technologies (POF3-621) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-144 / G:(DE-HGF)POF3-524 /
                      G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-6213 /
                      G:(DE-HGF)POF3-6G4},
      typ          = {PUB:(DE-HGF)31},
      url          = {https://juser.fz-juelich.de/record/889197},
}