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Quantum Tunneling of Magnetization in Lanthanide Single‐Molecule Magnets: Bis(phthalocyaninato)terbium and Bis(phthalocyaninato)dysprosium Anions
Author(s) -
Ishikawa Naoto,
Sugita Miki,
Wernsdorfer Wolfgang
Publication year - 2005
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.200462638
Subject(s) - dysprosium , terbium , lanthanide , magnetization , quantum tunnelling , chemistry , single molecule magnet , molecule , molecular magnets , phthalocyanine , condensed matter physics , spin (aerodynamics) , inorganic chemistry , ion , physics , magnetic field , organic chemistry , quantum mechanics , thermodynamics
Staircase‐like structures in the hysteresis loops at 0.04 K (see picture) are shown by doped single crystals of TBA[(Pc) 2 ${{{\rm {\rm Tb}}{{{\rm {\rm III}}\hfill \atop 0.02\hfill}}}}$ ${{{\rm {\rm Y}}{{{\rm {\rm III}}\hfill \atop 0.98\hfill}}}}$ ] − (Pc=phthalocyaninato, TBA=tetrabutylammonium), the first lanthanide single‐molecule magnet. They are assigned to resonant quantum tunneling of magnetization between entangled states of the electron and nuclear spin systems. The Dy complex was also studied.