Resistive switching characteristics of Pt/TiO<SUB>2</SUB>/W devices are investigated. TiO<SUB>2</SUB> thin films are grown by a sol-gel spin-coating technique. The crystal structure and chemical bonding states of the TiO&...
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https://www.riss.kr/link?id=A107565145
Biju, K.P. ; Liu, X. ; Shin, J. ; Kim, I. ; Jung, S. ; Siddik, M. ; Lee, J. ; Ignatiev, A. ; Hwang, H.
2011
-
KCI등재,SCIE,SCOPUS
학술저널
102-106(5쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Resistive switching characteristics of Pt/TiO<SUB>2</SUB>/W devices are investigated. TiO<SUB>2</SUB> thin films are grown by a sol-gel spin-coating technique. The crystal structure and chemical bonding states of the TiO&...
Resistive switching characteristics of Pt/TiO<SUB>2</SUB>/W devices are investigated. TiO<SUB>2</SUB> thin films are grown by a sol-gel spin-coating technique. The crystal structure and chemical bonding states of the TiO<SUB>2</SUB> films are investigated by X-ray diffraction and X-ray photoelectron spectroscopy. The device exhibits reversible and reproducible bistable resistive switching with a rectifying effect. The Schottky contact at the Pt/TiO<SUB>2</SUB> interface limits electron injection under reverse bias and results in a rectification ratio >60 at 2 V in a low-resistance state. The switching mechanisms in our device can be interpreted as oxygen-migration-induced redox reaction at the tungsten bottom electrode (W). The rectifying effect can reduce misreading errors in a cross-point array and provides a feasible way to achieve high memory density.
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