作者: G. Martinez , A. M. Hennel , W. Szuszkiewicz , M. Balkanski , B. Clerjaud
关键词: Molecular physics 、 Condensed matter physics 、 Doping 、 Chromium 、 Absorption (electromagnetic radiation) 、 Hydrostatic pressure 、 Relaxation (NMR) 、 Electron paramagnetic resonance 、 Photoionization 、 Charge (physics) 、 Materials science
摘要: Results on the absorption and electron paramagnetic resonance measurements chromium-doped GaAs are reported. For $p$-type samples main optical transitions shown to be due a photoionization process which has been measured as function of temperature hydrostatic pressure. A model, developed in configurational diagram scheme using two types relaxation, is proposed explain experimental results.