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TEM images for (a) the Pt(BE)/CoO interface in PCT and (b) Ta(BE)/CoO interface in TCP. The arrows in (b) represent the intermediate layer including Ta oxide.
Time evolution of the transient current during the forming process in PCP with the electrode area of . The inset is the corresponding curves. The blue and red curves correspond to forming with CC (1 mA) and , respectively. and indicated by a blue open triangle and red open circle are the maximum transient current with CC and LR, respectively.
curves in (a) the forming process with LR and (b) reset process in TCP with the electrode area of . The blue and red curves correspond to and , respectively. A1 and A2 in (a) are the maximum current in the forming process with LR, while B1 and B2 in (b) are the maximum current in the reset process.
The relation between and with LR in PCP, PCT, and TCP with the electrode area of .
The current at 0.2 V in the 100 times resistance switching by the pulse voltage for (a) TCP and (b) PCT with the electrode area of . The reset and set pulses were and for TCP, respectively. The reset and set pulses were and for PCT, respectively.
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