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  • Tao, Quanzheng, et al. (author)
  • Rare-earth (RE) nanolaminates Mo4RE4Al7C3 featuring ferromagnetism and mixed-valence states
  • 2018
  • In: Physical Review Materials. - : AMER PHYSICAL SOC. - 2475-9953. ; 2:11
  • Journal article (peer-reviewed)abstract
    • Rare-earth-based (RE) nanolaminates have attracted attention recently because of their complicated magnetism and their potential as precursors for strongly correlated two-dimensional materials. In this work, we synthesized a class of nanolaminates with a Mo4RE4Al7C3 chemistry, where RE = Ce or Pr. Powder samples of both phases were characterized with respect to structure and composition. Single crystals of Mo4Ce4Al7C3 were used for magnetization measurements. The crystal structure was investigated by means of x-ray diffraction and scanning transmission electron microscopy. Magnetization analysis reveals a ferromagnetic ground state with a Curie temperature of similar to 10.5 K. X-ray absorption near-edge structure provides experimental evidence that Ce is in a mixed-valence state. X-ray magnetic circular dichroism shows that only the Ce atoms with 4f(1) configuration occupying one of the two possible sites are ferromagnetically coupled, with a saturation moment of similar to 1.2 mu(B) per atom. We thus classify Mo4Ce4Al7C3 as a ferromagnetic, mixed-valence compound.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Lu, Jun (1)
Hultman, Lars (1)
Jouffret, L (1)
Rosén, Johanna (1)
Chaix-Pluchery, O. (1)
Ouisse, T. (1)
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Barsoum, M. W. (1)
Champagne, A. (1)
Pinek, D. (1)
Wilhelm, F. (1)
Tao, Quanzheng (1)
Charlier, J-C (1)
Rogalev, A. (1)
Opagiste, C. (1)
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University
Linköping University (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2018 (1)

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