Time-dependent Characteristics of Electric Field-induced Metal–Insulator Transition of Planer VO2/c-Al2O3 Structure
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概要
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The electric field-induced metal–insulator transition (MIT) of VO2 films on c-Al2O3(001) substrates was investigated in planer devices with strip line-patterned VO2 and two terminal electrodes. In a device with an electrode gap of 10 μm and an electrode length of 10 μm, we observed a transition from the initial high resistance state (HRS) to the low resistance state (LRS) in which the resistance of LRS was time-independent but current-dependent during electric pulse addition. Another planer device with different electrode dimensions supported the time-independent behavior of the LRS even for a high current. Present results strongly suggested that the electric field-induced MIT of a VO2 film can realize a stable resistive switching based on the Mott transition eliminating the Joule heating effect.
- 2007-09-25
著者
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Sakai Joe
School Of Materials Science Japan Advanced Institute Of Science And Technology (jaist)
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Okimura Kunio
Department Of Electronics Tokai University
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Sakai Joe
School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan
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Okimura Kunio
Department of Electrical and Electronic Engineering, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
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