Abstract
Ag/NiO/Pt structures did (did not) exhibit reproducible resistive switching when a positive bias was applied to the Pt (Ag) electrode. X-ray photoemission spectra revealed that ultrathin NiO films on Pt (Ag) layers did (did not) undergo reversible chemical state change during heat treatment in a vacuum and oxygen ambient. Such differences in interfacial chemical interaction may affect filament formation and rupture processes near the electrode and hence alter the resistive switching behaviors.
Original language | English |
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Article number | 022906 |
Journal | Applied Physics Letters |
Volume | 94 |
Issue number | 2 |
DOIs | |
State | Published - 2009 |
Bibliographical note
Funding Information:This work was supported by the KRF Grant (Grant No. KRF-2008-314-C00094) and Nano R&D program through KOSEF funded by MEST (Grant No. 2008-02557). S.H.P. and T.W.N. were supported by the Creative Research Initiatives of KOSEF. R.J. was supported by the Research Grant of Kwangwoon University in 2008.