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@ARTICLE{Klobes:1008962,
      author       = {Klobes, Benedikt and Angst, Manuel and Fenske, Daniela and
                      Konnur, Chinmay M. and Mahmoud, Abdelfattah and Sougrati,
                      Moulay Tahar},
      title        = {{M}agnetism and hyperfine interactions in the hexagonal
                      polymorph of delafossite {C}u{F}e{O} 2},
      journal      = {Journal of magnetism and magnetic materials},
      volume       = {570},
      issn         = {0304-8853},
      address      = {Amsterdam},
      publisher    = {North-Holland Publ. Co.},
      reportid     = {FZJ-2023-02556},
      pages        = {170469 -},
      year         = {2023},
      abstract     = {The magnetic susceptibility of and hyperfine interactions
                      in the hexagonal 2H polymorph of delafossite CuFeO were
                      investigated by SQUID magnetometry and Mössbauer
                      spectroscopy, respectively, at low temperatures. The
                      hydrothermally synthesized 2H-CuFeO sample contained a 10
                      $vol-\%$ -FeO impurity detected by X-ray diffraction, whose
                      contribution to the susceptibility and hyperfine
                      interactions were easily distinguishable from the major
                      2H-CuFeO one. Morphology and indirect optical band gap
                      investigated by scanning electron microscopy and diffuse
                      reflectance measurements showed well expected results for a
                      hydrothermally synthesized delafossite sample. The magnetic
                      susceptibility of 2H-CuFeO revealed a first
                      antiferromagnetic like transitions at 16 K and a second
                      transition at 13.5 K or 10 K depending on measurement
                      protocol, which points towards modified exchange
                      interactions as compared to the 3R polymorph. Complementary
                      Mössbauer measurements revealed complicated spectral shapes
                      at low temperatures indicating rather complex magnetic
                      structures and magnetic relaxations above 20 K.},
      cin          = {JCNS-2 / PGI-4 / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (FZJ) (POF4-6G4)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G4},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000949764900001},
      doi          = {10.1016/j.jmmm.2023.170469},
      url          = {https://juser.fz-juelich.de/record/1008962},
}