| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Research Abstract |
Recently, bipolar resistance switching of metal oxide has been identified as being physical examples of memristors and/or memristive devices. The underlying mechanism of the memristive switching behavior is still poorly understood, although there have been various proposed models of the resistance switching mechanism. The comprehensive understanding for the origin of the memristive switching is required to meet the requirement for the next-generation memristive device application. In this work, the mechanism of bipolar resistance switching was investigated in perovskite manganite films for memristive devices. Impedance spectroscopic measurements indicated that the interface resistance significantly depends on the dopant concentration in the film. The correlation between dielectric function and resistance switching behavior was found by spectroscopic ellipsometry. The voltage required for resistance switching was reduced by plasma-assisted reduction of the film surface.
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