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curves measured at different temperatures. The inset is the sketch of the two-point method.
Temperature dependence of magnetization measured under a magnetic field. The inset is the temperature dependence of resistance of LCMO thin film grown on substrate.
curve measured at with the up sweeping and down sweeping measurements. The arrows indicate the measurement direction. The upper-left inset is the sketch of the filamentary transport model. The open ovals stand for the FMM phases and the black squares are the COI phases. In the lower inset, some open ovals change to black ovals (black means insulating) due to the local Joule heating, leading to the decrease of the conducting path number.
Temperature dependence of measured at different forward bias voltages. The inset shows the curves measured at small bias voltages.
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