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Hyperfine‐Interaction‐Driven Suppression of Quantum Tunneling at Zero Field in a Holmium(III) Single‐Ion Magnet
Author(s) -
Chen YanCong,
Liu JunLiang,
Wernsdorfer Wolfgang,
Liu Dan,
Chibotaru Liviu F.,
Chen XiaoMing,
Tong MingLiang
Publication year - 2017
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.201701480
Subject(s) - hyperfine structure , condensed matter physics , quantum tunnelling , holmium , ion , single crystal , chemistry , field (mathematics) , hysteresis , magnetization , magnetic field , atomic physics , physics , crystallography , laser , optics , mathematics , quantum mechanics , pure mathematics , organic chemistry
An extremely rare non‐Kramers holmium(III) single‐ion magnet (SIM) is reported to be stabilized in the pentagonal‐bipyramidal geometry by a phosphine oxide with a high energy barrier of 237(4) cm −1 . The suppression of the quantum tunneling of magnetization (QTM) at zero field and the hyperfine structures originating from field‐induced QTMs can be observed even from the field‐dependent alternating‐current magnetic susceptibility in addition to single‐crystal hysteresis loops. These dramatic dynamics were attributed to the combination of the favorable crystal‐field environment and the hyperfine interactions arising from 165 Ho ( I =7/2) with a natural abundance of 100 %.