Fig. 2
From: Room-temperature ferroelectricity in MoTe2 down to the atomic monolayer limit
Ferroelectricity in d1T-MoTe2. a PFM phase hysteretic and butterfly loops of monolayer d1T-MoTe2. b, c PFM phase hysteretic and butterfly loops of d1T-MoTe2 before and after 30 days. d PFM phase image of monolayer d1T-MoTe2, where the electrical poling was applied by writing two square patterns with ±8 V, scale bar, 1 μm
