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arXiv · 0905.1161

Threshold Phenomena under Photo Excitation of Spin-crossover Materials with Cooperativity due to Elastic Interactions

Seiji Miyashita·Per Arne Rikvold·Takashi Mori·Yusuké Konishi·Masamichi Nishino·Hiroko Tokoro
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Abstract

Photo-induced switching from the low-spin state to the high-spin state is studied in a model of spin-crossover materials, in which long-range interactions are induced by elastic distortions due to different molecular sizes the two spin states. At a threshold value of the light intensity we observe nonequilibrium critical behavior corresponding to a mean-field spinodal point. Finite-size scaling of the divergence of the relaxation time is revealed by analysis of kinetic Monte Carlo simulations.

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Seiji Miyashita, Per Arne Rikvold, Takashi Mori, Yusuké Konishi, Masamichi Nishino, Hiroko Tokoro. 2009-05-08. Threshold Phenomena under Photo Excitation of Spin-crossover Materials with Cooperativity due to Elastic Interactions. https://doi.org/10.1103/physrevb.80.064414

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