期刊
CHEMICAL COMMUNICATIONS
卷 46, 期 15, 页码 2566-2568出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b918554b
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资金
- National Natural Science Foundation of China [50672037, 20971072, 90922032]
- NSF of Tianjin [09JCYBJC05600]
- French Research Agency (Agence Nationale de la Recherche [ANR-09-BLAN-0054-01]
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.
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