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arXiv 1905.08752cond-mat.mes-hall
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Cu $_{\mathrm{2}}$ O中里德伯激子的系列间跃迁

Interseries transitions between Rydberg excitons in Cu$_{\mathrm{2}}$O

Sjard Ole Krüger, Stefan Scheel

摘要:

研究了氧化亚铜Cu $_{\mathrm{2}}$ O中黄、绿、蓝系列激子之间的红外光学跃迁。我们表明,在许多情况下,偶极子近似是不够的,特别是,它打破了黄蓝过渡,即使是中等主量子数的$n \approx 10$。激子跃迁强度的评估所需的过渡算子的带间矩阵元素来自已知的,以及从拟合的带参数。

英文摘要:

We investigate the infrared optical transitions between excitons of the yellow, green and blue series in the cuprous oxide Cu$_{\mathrm{2}}$O. We show that in many cases the dipole approximation is inadequate and, in particular, that it breaks down in yellow-blue transitions even for moderate principal quantum numbers of $n \approx 10$. The interband matrix elements of the transition operator needed for the evaluation of the excitonic transition strengths are derived from known as well as from fitted band parameters.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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