Electron -electron and electron-phonon correlation effects on the finite- temperature electronic and optical properties of zinc-blende GaN
Electron -electron and electron-phonon correlation effects on the finite- temperature electronic and optical properties of zinc-blende GaN
复制标题
电子-电子和电子-声子相关效应对闪锌矿GaN有限温度电子和光学性质的影响
DOI：
10.1103/physrevb.89.085202
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发表时间：
2014
影响因子：
3.7
通讯作者：
A. Marini
中科院分区：
文献类型：
--
作者：
H. Kawai;K. Yamashita;E. Cannuccia;A. Marini
We combine the effect of the electron-electron and electron-phonon interactions to study the electronic and optical properties of-GaN. We show that only by treating the two effects at the same time is it possible to obtain an unprecedented agreement of the zero- and finite-temperature electronic gaps and absorption spectra with the experimental results. Compared to the state-of-the-art results our calculations predict a large effect on the main absorption peak position and width as well as on the overall absorption line shape. These important modifications are traced back to the combined electron-phonon damping mechanism and nonuniformlevel corrections. Our results demonstrate the importance of treating on equal footing the electron and phonon mediated correlation effects to obtain an accurate description of the physical properties of group III nitrides.
