Linewidths in excitonic absorption spectra of cuprous oxide
Linewidths in excitonic absorption spectra of cuprous oxide
复制标题
氧化亚铜的激子吸收光谱线宽
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
G. Wunner
中科院分区：
文献类型：
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作者：
Frank Schweiner;J. Main;G. Wunner
我们基于 Y. Toyozawa 提出的一般理论提出了氧化亚铜 $\left(\mathrm{Cu_{2}O}\right)$ 吸收光谱的理论计算。不仅包含声学声子，还包含光学声子以及 $\mathrm{Cu_{2}O}$ 中激子的特定属性（例如 $1S$ 激子的中心单元校正），使我们能够在相同数量级内计算 T. Kazimierczuk 等人 [Nature 514, 343, (2014)] 实验中观察到的线宽，这表明与关于这个主题的早期工作。我们还讨论了各种进一步的效应，这些效应解释了理论与实验之间仍然可观察到的差异，但很难包含在理论计算中。
We present a theoretical calculation of the absorption spectrum of cuprous oxide $\left(\mathrm{Cu_{2}O}\right)$ based on the general theory developed by Y. Toyozawa. An inclusion not only of acoustic phonons but also of optical phonons and of specific properties of the excitons in $\mathrm{Cu_{2}O}$ like the central-cell corrections for the $1S$-exciton allows us to calculate the experimentally observed line widths in experiments by T. Kazimierczuk et al [Nature 514, 343, (2014)] within the same order of magnitude, which demonstrates a clear improvement in comparison to earlier work on this topic. We also discuss a variety of further effects, which explain the still observable discrepancy between theory and experiment but can hardly be included in theoretical calculations.
影响因子：
64.8
作者：
Kazimierczuk, T.;Froehlich, D.;Bayer, M.
通讯作者：
Bayer, M.