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Temperature dependence of the resistivity of the LCMO films with different Ca contents.
Current-voltage characteristics of the LCMO/STON junction measured under different temperatures below . Inset plot is a schematic diagram showing the electrode setting for the resistive measurements.
Semilog plot of the characteristics of LCMO/STON for (left panel) and (right panel) measured under different temperatures below . The arrow marks the inflection that mediates the two electronic processes.
Saturation current as a function of temperature (top panel) and the Ca content dependence of the interfacial potential obtained at the room temperature (bottom panel). Solid lines are guides for the eyes.
Schematic band structures of the LCMO/STON junction demonstrating the effects of Ca content.
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