Fig. 3
From: Highly sensitive integrated flexible tactile sensors with piezoresistive Ge 2 Sb2Te5 thin films

Normalized resistance change as a function of external strain, demonstrating a GF of 338
From: Highly sensitive integrated flexible tactile sensors with piezoresistive Ge 2 Sb2Te5 thin films

Normalized resistance change as a function of external strain, demonstrating a GF of 338