Temperature dependence of the dielectric tensor of monoclinic Ga2O3 single crystals in the spectral range 1.0-8.5 eV
Temperature dependence of the dielectric tensor of monoclinic Ga2O3 single crystals in the spectral range 1.0-8.5 eV
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DOI：
10.1063/1.4999763
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发表时间：
2017-08-21
影响因子：
4
通讯作者：
Grundmann, M.
中科院分区：
文献类型：
--
作者：
Sturm, C.;Schmidt-Grund, R.;Grundmann, M.
用广义椭圆偏振光谱法在1.0 ~ 8.5eV的光谱范围和10 ~ 300 K的温度范围内测定了单斜Ga_2O_3（β相）的全介电张量。利用定向偶极方法，确定了激子跃迁的能量和展宽随温度的变化关系，并由此导出了激子-声子耦合性质。由AIP出版社出版。
The full dielectric tensor of monoclinic Ga2O3 (beta-phase) was determined by generalized spectroscopic ellipsometry in the spectral range from 1.0 eV up to 8.5 eV and temperatures in the range from 10K up to 300K. By using the oriented dipole approach, the energies and broadenings of the excitonic transitions are determined as a function of the temperature, and the exciton-phonon coupling properties are deduced. Published by AIP Publishing.