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|Title:||Resistive switching in a GaO x-NiO x p-n heterojunction|
|Citation:||Zheng, K., Zhao, J.L., Sun, X.W., Vinh, V.Q., Leck, K.S., Zhao, R., Yeo, Y.G., Law, L.T., Teo, K.L. (2012-10-01). Resistive switching in a GaO x-NiO x p-n heterojunction. Applied Physics Letters 101 (14) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4757761|
|Abstract:||We report a unidirectional bipolar resistive switching in an n-type GaO x/p-type NiO x heterojunction fabricated by magnetron sputtering at room temperature. The resistive switching behavior coincides with the switching between Ohmic conduction (low resistance) and rectifying behavior (high resistance) of the heterojunction diode. Under external electric field, electromigrated intrinsic defects, such as oxygen vacancies and oxygen ions, accumulate at the pn junction interface and modify the interface barrier, forming or rupturing the filamentary paths between n-GaO x and p-NiO x, leading to the switching between Ohmic and diode characteristics of the device. The device shows good endurance, retention performance, and scaling capability, signaling the potential of a diode-structured resistive switching device for non-volatile memory applications. © 2012 American Institute of Physics.|
|Source Title:||Applied Physics Letters|
|Appears in Collections:||Staff Publications|
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