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刘晓峻
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期刊论文
Photoinduced Phase Transition and Relaxation Behavior in a Spin-Crossover Fe (II) Complex Nafion-[Fe(Gtrz)3] Film
Journal of the Physical Societ of Japan Vol. 70, No.9, September, 2001, pp. 2521-2524，-0001，（）：
We have observed a photoinduced hphase transition (PIPT) in a spin-crossover Fe(II) complex Nafion-[Fe(Htrz)3] film (Nafion is an ion exchange polmer film, and Htrz-1, 2, 4-1H-triazole) from a low-spin (LS) state (S=0) to a high-spin (HS) state (S=2) below 150K. The phototransferred HS state relaxed to the initial LS state, exhibiting a nonexponeential time behavior, which has bee interpreted in terms of the ciical nucleation and subsequent growth of the LS clusters. We have also observed that the decay time Tc is approximately temperature independent inthe low temperature range of 4.2-20K, and then decreases exponentially with temperature.
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