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Single‐Molecule Magnets: Different Rates of Resonant Magnetization Tunneling in Mn 12 Complexes
Author(s) -
Ruiz Daniel,
Sun Ziming,
Albela Belen,
Folting Kirsten,
Ribas Joan,
Christou George,
Hendrickson David N.
Publication year - 1998
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/(sici)1521-3773(19980216)37:3<300::aid-anie300>3.0.co;2-c
Subject(s) - magnetization , quantum tunnelling , condensed matter physics , magnet , molecular magnets , single molecule magnet , materials science , physics , magnetic field , quantum mechanics
Two new molecular magnets , the dodecanuclear manganese complexes of the type [Mn 12 O 12 (O 2 CR) 16 (H 2 O) 4 ] (known for R = CH 3 , new for R = o ‐ClC 6 H 4 , o ‐BrC 6 H 4 ) have contributed to a better quantum mechanical understanding of single‐molecule magnets. For instance, appreciable differences in the steps seen in the magnetization hysteresis loops of these high‐spin clusters are attributed to changes in the rates of magnetization tunneling from one complex to another.