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首页> 外文期刊>Quantum Beam Science >Analysis of Ion-Irradiation Induced Lattice Expansion and Ferromagnetic State in CeO 2 by Using Poisson Distribution Function
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Analysis of Ion-Irradiation Induced Lattice Expansion and Ferromagnetic State in CeO 2 by Using Poisson Distribution Function

机译：用泊松分布函数分析CEO 2中CEO 2中的离子辐射诱导晶格膨胀和铁磁性

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The lattice constant and the magnetic state of CeO2 are modified by the irradiation with 200 MeV Xe ions. Under the assumption that these modifications are induced in the narrow one-dimensional region (the ion track) along the ion beam path, the dependence of the lattice constant and the saturation magnetization of CeO2 on the Xe ion fluence was analyzed by using the Poisson distribution function. The analysis reveals that the lattice constant inside the ion track, which is larger than that outside the ion track, is not affected by the overlapping of the ion track. On the other hand, the ferromagnetic state is induced inside the ion track, but the analysis shows that this ferromagnetic state is gradually destroyed due to the overlapping of the ion track. The present result implies that the Poisson distribution function is useful for describing the effect of the ion track overlapping on the ion irradiation-induced ferromagnetic state in CeO2.
机译：用200meV Xe离子的照射改性CeO 2的晶格常数和磁力状态。 在假设沿离子束路径沿着离子束路径（离子轨道）在窄的一维区域（离子轨道）中引起这些修改，通过使用泊松分布，分析了晶格常数和CEO2对XE离子注射的饱和磁化的依赖性 功能。 该分析表明，离子轨道大于离子轨道外部的离子轨道内的晶格常数不受离子轨道的重叠的影响。 另一方面，铁磁状态在离子轨道内被引起，但分析表明，由于离子轨道的重叠，该铁磁状态逐渐被破坏。 本结果意味着泊松分布函数可用于描述离子轨道重叠对CeO2中离子照射诱导的铁磁态的影响。

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