Bistable switching effect, induced by an electric field, in an anodic porous alumina thin film is reported. An electrode was bonded on the surface of a thin film with Ag paste, and I-V characteristic between the electrode and the aluminium substrate was measured The I-V characteristic reveals a reversible resistance change, initiating at +4 V and terminating at 1.5 V at room temperature. Huge electrical resistance change ratio (RR), defined ...
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