Figure 1. Ferroelastic strain control of Verwey metal-insulator transition in Fe₃O₄/PMN-PT (011).

(a) Schematics of four-point resistance measurement. (b) X-ray diffraction patterns of Fe₃O₄/PMN-PT (011) under unpoled and poled states. (c) Ferroelastic strain state dependence of resistivity as a function of temperature for (011) oriented Fe₃O₄/PMN-PT. (d) Relative resistance change at a function of temperature. The insets are absolute value of resistance change. (e) Magnetic moment as a function of temperature for poled and unpoled Fe₃O₄/PMN-PT(011). Inset shows the first derivative_. (f) Magnetic hysteresis loops at Verwey temperature.