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Fig. 2 | Nanoscale Research Letters

Fig. 2

From: Local Magnetoelectric Effect in La-Doped BiFeO3 Multiferroic Thin Films Revealed by Magnetic-Field-Assisted Scanning Probe Microscopy

Fig. 2

a The schematic diagram of local P-V hysteresis loop measurements under magnetic fields. b Optical micrograph of the tiny electrodes with the diameter of 20 μm by a photolithography method. c Comparison of the local leakage current density vs. voltage curve with 20 and 200 μm electrodes. d, e The local ferroelectric P-V hysteresis loops under various magnetic fields ranging from 0 to 40 Oe and 40 to 500 Oe, respectively. f The saturation polarization (P s) values as a function of external magnetic fields derived from d and e

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