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@ARTICLE{Rajnak:448377,
      author       = {Rajnak, M. and Garamus, V. M. and Timko, M. and Kopcansky,
                      P. and Paulovicova, K. and Kurimsky, J. and Dolnik, B. and
                      Cimbala, R.},
      title        = {{S}mall {A}ngle {X}-ray {S}cattering {S}tudy of {M}agnetic
                      {N}anofluid {E}xposed to an {E}lectric {F}ield},
      journal      = {Acta physica Polonica / A},
      volume       = {137},
      number       = {5},
      issn         = {0587-4246},
      address      = {Warsaw},
      publisher    = {Acad. Inst.},
      reportid     = {PUBDB-2020-03405},
      pages        = {942 - 944},
      year         = {2020},
      abstract     = {We report on the investigation of a transformer oil-based
                      magnetic nanofluid exposed to an electric field by means of
                      synchrotron small angle X-ray scattering. Two types of small
                      angle X-ray scattering experiments were carried out. In the
                      first one, the electric field up to 6 kV / cm was generated
                      in the nanofluid between two immersed electrodes. The other
                      experiment focused on the nanofluid in an external electric
                      field up to 10 kV / cm, when the electrodes were not in a
                      direct electrical contact with the nanofluid. In the
                      available range (0.02–4.5 nm$^{−1}$) of scattering
                      vector $q$, the non-contact mode has no effect on the
                      scattering intensity. The contact mode yielded noticeable
                      low-$q$ intensity variations. In comparison to small angle
                      neutron scattering, the small angle X-rayscattering study
                      did not prove the proportional increase in the low $q$
                      scattering intensity with increasing electric field, but
                      rather stochastic variations. The observed intensity
                      variations reflect the local structural nanofluid changes
                      caused by the induced electrohydrodynamics. The electrical
                      conductivity and relaxation processes are pointed out as
                      favorable conditions for electrohydrodynamics in the
                      magnetic nanofluid.},
      cin          = {EMBL-User},
      ddc          = {530},
      cid          = {I:(DE-H253)EMBL-User-20120814},
      pnm          = {6G3 - PETRA III (POF3-622)},
      pid          = {G:(DE-HGF)POF3-6G3},
      experiment   = {EXP:(DE-H253)P-P12-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000558676100109},
      doi          = {10.12693/APhysPolA.137.942},
      url          = {https://bib-pubdb1.desy.de/record/448377},
}