Effects of crystallization and non-lattice oxygen atoms on Cu(x)O-based resistive switching memory.
2013
: In this work, the effects of crystallization and non-lattice oxygen atoms on the Cu(x)O-based memory device are investigated. The 150 degrees C-deposited Cu(x)O film possesses a larger amount of non-lattice oxygen atoms than those deposited at the higher temperatures, leading to the formation of AIOy interface layer during the sputtering deposition of Al top electrode. Resistive switching occurring within the interface layer is easily controlled, so the set and reset voltages are decreased. In addition, it is demonstrated that the set and reset processes agree with the formation and rupture of a conductive filament in the Cu(x)O film. The 150 degrees C-deposited Cu(x)O-based memory device with good non-volatility is possibly used in the next-generation non-volatile memory.
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