SCHEDULED MAINTENANCE
High temperature quantum tunnelling of magnetization and thousand kelvin anisotropy barrier in a Dy2 single-molecule magnet†
Haipeng
Wu, 
‡ab
Zhengqiang
Xia,
*a
Vincent
Montigaud,
c
Olivier
Cador,
*c
Boris
Le Guennic,
*c
Wenyuan
Wang,
a
Sanping
Chen
*a
and
‡ab
Zhengqiang
Xia,
*a
Vincent
Montigaud,
c
Olivier
Cador,
*c
Boris
Le Guennic,
*c
Wenyuan
Wang,
a
Sanping
Chen
*a
and
Abstract
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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