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A Mononuclear Dysprosium Complex Featuring Single-Molecule-Magnet Behavior

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  • This work was supported by the NSFC (20821091, 90922033) and the National Basic Research Program of China (2006CB601102, 2009CB929403). Dedicated to the 100th anniversary of chemical research and education at Peking University.

Abstract

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No dates for Dy3+: With a single-ion magnet containing dysprosium, magnetic-site dilution leads to a hysteresis loop that can be detected at 0.5 and 2 K. On cooling below 8 K, the relaxation mechanism of the undiluted complex changes from a thermally activated process to quantum tunneling. The quantum tunneling can be suppressed by applying a direct-current field and by magnetic site dilution.

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