Dependence of Electrode on Switching Effect of Pr1-xCaxMnO3 Thin Film
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概要
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We examined the effect of top-electrode materials on the electric-pulse-induced resistance (EPIR) change property of Pr1-xCaxMnO3 (PCMO) thin films grown on a Pt/Ti/SiO2/Si substrate. To investigate the top-electrode effect, we used Al, Pt, Au/Cr and Au (10%)–Pd (90%) alloy metals as the top electrodes on PCMO films with a Pt bottom electrode. The thin films with an Al top and a Au/Cr electrode exhibited EPIR switching phenomena. With a top electrode of 75 μm diameter circle, the Pr0.7Ca0.3MnO3 film shows a low resistance in the range of 20–40 $\Omega$. The ratio between low resistance and high resistance is approximately 2 under an applied single pulse of 50 ns duration and $\pm 4$ V magnitude. On the contrary, the thin films with Pt and Au–Pd alloy top electrodes exhibited no EPIR switching.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2005-03-15
著者
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Kim Byung
Korea Advanced Institute Of Science And Technology
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Chen I-wei
University Of Pennsylvania
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Kim Chang
Korea Advanced Institute Of Scierice And Technology
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Kim Byung
Korea Institute of Ceramic Engineering and Technology, 233-5, Gasan-Dong, Guemcheon-Gu, Seoul 153-801, Korea
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