Reference : Noncollinear magnetism in nanosized cobalt chromite
Scientific journals : Other
Physical, chemical, mathematical & earth Sciences : Physics
Physics and Materials Science
Noncollinear magnetism in nanosized cobalt chromite
Zakutna, D. [> >]
Vlcek, J. [> >]
Fitl, P. [> >]
Nemkovski, K. [> >]
Honecker, Dirk mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit]
Niznansky, D. [> >]
Disch, S. [> >]
Physical Review. B
Yes (verified by ORBilu)
[en] 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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