Two-step relaxation in a linear tetranuclear dysprosium(III) aggregate showing single-molecule magnet behavior.
A well-defined two-step relaxation, described by the sum of two modified Debye functions, is observed in a new alkoxido-bridged linear tetranuclear Dy(III) aggregate showing single-molecule magnet behavior with a remarkably large energy barrier. This compound represents a model molecular aggregate with a clear two-step relaxation evidenced by frequency-dependent susceptibility, which therefore may stimulate further investigations regarding the relaxation dynamics of lanthanide-based systems.
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
Yun-Nan
YN
Guo
Gong-Feng
GF
Xu
Patrick
P
Gamez
Lang
L
Zhao
Shuang-Yan
SY
Lin
Ruiping
R
Deng
Jinkui
J
Tang
Hong-Jie
HJ
Zhang