Fig. 3: Ultra-wide Vb-tunability of magnetoelectric coupling in thin-layer CCPS.
From: Ferrielectricity controlled widely-tunable magnetoelectric coupling in van der Waals multiferroics
a Normalized TMR vs H∥ curves of MTJ 8L-S20 under different Vb setpoints. b 2D contour plot of the normalized TMR vs Vb and H∥ in (a). It is noteworthy that for each H∥ setpoint, the CAFM canting angle θ± for opposite-polarity Vb are divergent (see Supplementary Fig. 5 for CAFM θ± calculations). c ΔEMEC(E) vs Vb, extracted from the TMR data of 10L-S39, and the error bars are defined as the ± 10% variation of half-maximum points in dG/dH curve (see Supplementary Figs. 5 and 6). d Dichotomic It vs H∥ characteristics of 8L-S20. Note that It is symmetric on H∥ ramping, excluding any ferroelectric polarization reversal. e Zero-H\({\,{{\mbox{R}}}\,}_{0}^{\pm }\) reversals by switching the Vb polarities. It is apparent that the It − Vb sweeping is completely free of hysteresis.
