Premium
Magnetization Reversal in CsNi II Cr III (CN) 6 Coordination Nanoparticles: Unravelling Surface Anisotropy and Dipolar Interaction Effects
Author(s) -
Prado Yoann,
Mazerat Sandra,
Rivière Eric,
Rogez Guillaume,
Gloter Alexandre,
Stéphan Odile,
Catala Laure,
Mallah Talal
Publication year - 2014
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201400741
Subject(s) - materials science , magnetization , magnetic anisotropy , nanoparticle , anisotropy , dipole , anisotropy energy , condensed matter physics , single domain , magnetic nanoparticles , magnetization reversal , nuclear magnetic resonance , chemical physics , nanotechnology , magnetic field , physics , optics , quantum mechanics
CsNiCr(CN) 6 coordination nanoparticles with sizes ranging from 6 to 30 nm are highly diluted in an organic polymer matrix. Their static and dynamic magnetic behaviour allows unravelling of surface anisotropy and interparticle dipolar interaction effects. The single magnetic domain critical size is thus evaluated to be around 22 nm with a blocking temperature of 21 K (at ν = 1 Hz) and an effective energy barrier for the reversal of the magnetization of 426 K.