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A new quasi-one-dimensional organic ferromagnet model is proposed. Magnon excitations for finite and infinite on-site repulsion of electrons on main carbon chain are investigated. It is found that the lowest branch of spectrum preserves the characteristics of the ferromagnetic magnon. It is also shown that with increasing of the on-site repulsion energy, the itinerant π-electrons become tightly localized. 相似文献
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信息熵与误差分布密度函数 总被引:2,自引:0,他引:2
本文从信息熵的角度分析测量误差分布问题,并导出了二个重要的误差分布函数:正态分布与均匀分布函数。 相似文献
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