Fig. 4: Polarization hysteresis.
From: Cross-field optoelectronic modulation via inter-coupled ferroelectricity in 2D In2Se3
a IP electric field across the α-In2Se3 channel as a function of withdrawn gate voltage. The connected black dots denote electric fields for withdrawn gate voltage from 0 to −100 V, the connected red dots denote electric fields for withdrawn gate voltage from −80 to 100 V and the connected green dots indicate electric fields for withdrawn gate voltage from 80 to −100 V. The direction of the arrows indicates the direction of progression of the scan. b Temporal remanence of the IP electric field after the withdrawal of gate bias. The dotted blue lines show the general trend of the evolution of the electric field with time.
