Back Cover: Impact of short-range order and clusterization on the bandgap bowing: First-principles calculations on the electronic properties of metastable (GaAs)1–x(Ge2)x alloys (Phys. Status Solidi B 1/2012)

Impact of short-range order and clusteri

Impact of short-range order and clusterization on the bandgap bowing: First-principles calculations on the electronic properties of metastable (GaAs)1–x(Ge2)x alloys

✍ H. Kawai; G. Giorgi; K. Yamashita 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 595 KB

## Abstract The large, negative, and asymmetric bandgap bowing in (GaAs)~1–__x__~(Ge~2~)~__x__~ alloys is investigated as function of Ge concentration, via the combination of density functional theory and __GW__~0~ approach. We revealed that the large negative character of the gap bowing is due to