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@ARTICLE{Radelytskyi:861788,
      author       = {Radelytskyi, Igor and Aleshkevych, P. and Gawryluk, D. J.
                      and Berkowski, M. and Zajarniuk, T. and Szewczyk, A. and
                      Gutowska, M. and Hawelek, L. and Wlodarczyk, P. and
                      Fink-Finowicki, J. and Minikayev, R. and Diduszko, R. and
                      Konopelnyk, Y. and Kozłowski, M. and Puz´niak, R. and
                      Szymczak, H.},
      title        = {{S}tructural, magnetic, and magnetocaloric properties of
                      {F}e$_7${S}e$_8$ single crystals},
      journal      = {Journal of applied physics},
      volume       = {124},
      number       = {14},
      issn         = {1089-7550},
      address      = {Melville, NY},
      publisher    = {American Inst. of Physics},
      reportid     = {FZJ-2019-02216},
      pages        = {143902 -},
      year         = {2018},
      abstract     = {The magnetocaloric effect has been studied in high quality
                      single crystals of Fe7Se8 (3c type) grown by using
                      Bridgman’s method. Magnetization and magnetocaloric effect
                      measurements have been carried out in a magnetic field up to
                      5 T over the temperature range from 2 to 490 K. The spin
                      reorientation transition from the easy c-axis to the easy
                      c-plane, proceeding in an abrupt fashion, as a first-order
                      phase transition, has been observed near the temperature
                      TR ≈ 125 K. The magnetization curves in the vicinity
                      of this transition were shown to have an S-shape with a
                      clear hysteresis. The first order metamagnetic field induced
                      transitions have been identified above and below TR. The
                      conventional magnetocaloric effect related to the
                      metamagnetic transitions has been found above TR, while
                      below TR the inverse magnetocaloric effect was clearly seen.
                      The existence of both kinds of magnetocaloric effect is
                      important from the point of view of large rotating field
                      entropy change in Fe7Se8 single crystals. The refrigeration
                      capacity associated with a second order phase transition
                      from the ferrimagnetic to the paramagnetic state at the
                      Néel temperature TN ≈ 450 K was found to be weaker
                      than that appearing near TR. The giant anisotropy of the
                      magnetocaloric effect was related to the magnetic anisotropy
                      of Fe7Se8 crystals. The one-ion model of the magnetocaloric
                      effect has been developed and its predictions have been
                      compared with experimental data.},
      cin          = {JCNS-FRM-II / JCNS-2},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-2-20110106},
      pnm          = {524 - Controlling Collective States (POF3-524) / 6212 -
                      Quantum Condensed Matter: Magnetism, Superconductivity
                      (POF3-621) / 6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich
                      Centre for Neutron Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-524 / G:(DE-HGF)POF3-6212 /
                      G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000447148100004},
      doi          = {10.1063/1.5042344},
      url          = {https://juser.fz-juelich.de/record/861788},
}