Origin of the anomalous piezoelectric response in wurtzite Sc${}_x$Al${}_{1-x}$N alloys

Ferenc Tasnádi, Björn Alling, Carina Höglund +4

The origin of the anomalous, 400% increase of the piezoelectric coefficient in Sc${}_x$Al${}_{1-x}$N alloys is revealed. Quantum mechanical calculations show that the effect is intrins…