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Magnetic Memory in an Isotopically Enriched and Magnetically Isolated Mononuclear Dysprosium Complex
Author(s) -
Pointillart Fabrice,
Bernot Kevin,
Golhen Stéphane,
Le Guennic Boris,
Guizouarn Thierry,
Ouahab Lahcène,
Cador Olivier
Publication year - 2015
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.201409887
Subject(s) - dysprosium , diamagnetism , molecule , magnetic relaxation , relaxation (psychology) , materials science , amorphous solid , magnet , hysteresis , magnetic hysteresis , magnetization , chemical physics , chemistry , crystallography , condensed matter physics , inorganic chemistry , magnetic field , physics , organic chemistry , social psychology , psychology , quantum mechanics
The influence of nuclear spin on the magnetic hysteresis of a single‐molecule is evidenced. Isotopically enriched Dy III complexes are synthesized and an isotopic dependence of their magnetic relaxation is observed. This approach is coupled with tuning of the molecular environment through dilution in an amorphous or an isomorphous diamagnetic matrix. The combination of these approaches leads to a dramatic enhancement of the magnetic memory of the molecule. This general recipe can be efficient for rational optimization of single‐molecule magnets (SMMs), and provides an important step for their integration into molecule‐based devices.