Premium
Record Hard Magnets: Glauber Dynamics Are Key
Author(s) -
Sessoli Roberta
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200801549
Subject(s) - magnet , glauber , cobalt , condensed matter physics , coercivity , chemical physics , molecular dynamics , dynamics (music) , magnetization , alloy , anisotropy , molecular magnets , materials science , ion , magnetization dynamics , crystallography , chemistry , physics , computational chemistry , magnetic field , metallurgy , optics , organic chemistry , quantum mechanics , acoustics , scattering
A molecular magnet comprising cobalt(II) ions and nitronyl‐nitroxide radicals has a large coercivity at low temperature that makes it comparable to the hardest commercial alloy‐based magnets. The one‐dimensional character of the material, with very strong and anisotropic exchange interactions along the chains, seems responsible for the dramatic slowing of the magnetization dynamics.