%0 Journal Article
%A Zákutná, D.
%A Vlček, J.
%A Fitl, P.
%A Nemkovskiy, Kirill
%A Honecker, D.
%A Nižňanský, D.
%A Disch, S.
%T Noncollinear magnetism in nanosized cobalt chromite
%J Physical review / B
%V 98
%N 6
%@ 2469-9950
%C Woodbury, NY
%I Inst.
%M FZJ-2019-00656
%P 064407
%D 2018
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000440820200006
%R 10.1103/PhysRevB.98.064407
%U https://juser.fz-juelich.de/record/859834