• Medientyp: E-Artikel
  • Titel: Noncollinear magnetism in nanosized cobalt chromite
  • Beteiligte: Zákutná, D. [VerfasserIn]; Vlček, J. [VerfasserIn]; Fitl, P. [VerfasserIn]; Nemkovskiy, Kirill [VerfasserIn]; Honecker, D. [VerfasserIn]; Nižňanský, D. [VerfasserIn]; Disch, S. [VerfasserIn]
  • Erschienen: Inst., 2018
  • Erschienen in: Physical review / B 98(6), 064407 (2018). doi:10.1103/PhysRevB.98.064407
  • Sprache: Englisch
  • DOI: https://doi.org/10.1103/PhysRevB.98.064407
  • ISSN: 1094-1622; 0556-2805; 1550-235X; 1050-2947; 1098-0121; 0163-1829; 2469-9969; 1095-3795; 1538-4489; 2469-9950
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  • Beschreibung: Using a combination of neutron diffraction with XYZ polarization analysis and magnetization measurements, the noncollinear magnetism in nanosized cobalt chromite, a potential multiferroic material, is revealed. For noninteracting 26.9(1) nm nanoparticles, a bulklike behavior is identified, including a ferrimagnetic Curie temperature of 99 K and a transition to the spin spiral magnetic phase at 27 K with a temperature-dependent, incommensurate propagation vector. A lock-in transition towards a commensurate propagation vector is not observed. Much smaller, 3.1(2) nm, nanoparticles reveal a strong cluster glass behavior, characterized by ferrimagnetic behavior below the Curie temperature of 43 K and a transition to asperomagnetic behavior at 18 K, with the absence of any magnetic reflections at a base temperature of 5 K.
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