title: Smooth transition between SMM and SCM-type slow relaxing dynamics for a 1-D assemblage of {Dy(nitronyl nitroxide)2} units.
abstract: A model example for size effects on the dynamic susceptibility behavior is provided by the chain compound [{Dy(hfac)(3)NitPhIm(2)}Dy(hfac)(3)] (NitPhIm = 2-[4-(1-imidazole)phenyl]nitronyl nitroxide radical). The Arrhenius plot reveals two relaxation regimes attributed to SMM (Delta = 17.1 K and tau(0) = 17.5 x 10(-6) s) and SCM (Delta = 82.7 K and tau(0) = 8.8 x 10(-8) s) behaviors. The ferromagnetic exchange among the spin carriers has been established for the corresponding Gd derivative.
authors.affiliation: Department of Chemistry, Nankai University, Tianjin 300071, China.
authors.forename: Ruina
authors.initials: R
authors.lastname: Liu
authors.forename: Licun
authors.initials: L
authors.lastname: Li
authors.forename: Xiaoling
authors.initials: X
authors.lastname: Wang
authors.forename: Peipei
authors.initials: P
authors.lastname: Yang
authors.forename: Chao
authors.initials: C
authors.lastname: Wang
authors.forename: Daizheng
authors.initials: D
authors.lastname: Liao
authors.forename: Jean-Pascal
authors.initials: JP
authors.lastname: Sutter