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A {Cr III 2 Dy III 2 } Single‐Molecule Magnet: Enhancing the Blocking Temperature through 3d Magnetic Exchange
Author(s) -
Langley Stuart K.,
Wielechowski Daniel P.,
Vieru Veacheslav,
Chilton Nicholas F.,
Moubaraki Boujemaa,
Abrahams Brendan F.,
Chibotaru Liviu F.,
Murray Keith S.
Publication year - 2013
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.201306329
Subject(s) - single molecule magnet , diamagnetism , magnetization , magnet , relaxation (psychology) , magnetism , quantum tunnelling , blocking (statistics) , condensed matter physics , hysteresis , chemistry , physics , crystallography , nuclear magnetic resonance , computer science , magnetic field , quantum mechanics , psychology , social psychology , computer network
Butterfly magnet : The replacement of diamagnetic Co III for Cr III in a 3d‐4f butterfly complex results in vastly improved single‐molecule magnet properties. Longer relaxation times are found, with magnetic hysteresis observed. This is due to exchange interactions between the Dy III and Cr III ions, resulting in a multilevel exchange barrier with significantly reduced quantum tunneling of the magnetization.