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Article Dans Une Revue Chemical Communications Année : 2021

High temperature quantum tunnelling of magnetization and thousand kelvin anisotropy barrier in a Dy(2) single-molecule magnet

Résumé

We report here a dinuclear DyIII iodine-bridged single-molecule magnet self-assembled by cis/trans coordination chemistry that displays a large anisotropy barrier of ca. 1300 K and a hysteresis opening temperature of 16 K. High temperature quantum tunnelling of magnetization is observed up to 56 K in zero-field and explained by the combination of the large anisotropy barrier and the local transverse field at the trans site. The results provide a model for thorough understanding of the effect of electronic structure on the magnetic behavior of lanthanide complexes.

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Chimie
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Dates et versions

hal-03102116 , version 1 (23-02-2021)

Identifiants

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Haipeng Wu, Min Li, Zhengqiang Xia, Vincent Montigaud, Olivier Cador, et al.. High temperature quantum tunnelling of magnetization and thousand kelvin anisotropy barrier in a Dy(2) single-molecule magnet. Chemical Communications, 2021, 57 (57), pp.371-374. ⟨10.1039/d0cc06993k⟩. ⟨hal-03102116⟩
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