电极尺寸对忆阻器性能影响的实验和理论研究
The Effect of Electrode Size on Memristor Properties: An Experimental and Theoretical Study
摘要：
电极的宽度不包括在当前忆阻的唯象模型中，但包括在忆阻的记忆守恒（mem-con）理论中。实验研究了改变顶电极宽度对钛白溶胶-凝胶忆阻器的影响。结果表明，导通电阻Ron和截止电阻Roff都随着电极尺寸的增大而减小。mem-con模型的记忆函数部分可以拟合电极尺寸与Ron的关系。类似地，守恒函数拟合Roff的变化。实验测得的滞后现象不符合现象学模型的预测。相反，滞后的大小随着电极尺寸的增加而增加，并且与Ron的减小很好地相关。
英文摘要：
The width of the electrodes is not included in the current phenomenological models of memristance, but is included in the memory-conservation (mem-con) theory of memristance. An experimental study of the effect of changing the top electrode width was performed on titanium dioxide sol-gel memristors. It was demonstrated that both the on resistance, Ron, and the off resistance, Roff, decreased with increasing electrode size. The memory function part of the mem-con model could fit the relationship between Ron and electrode size. Similarly, the conservation function fits the change in Roff. The experimentally measured hysteresis did not fit the phenomenological model's predictions. Instead the size of the hysteresis increased with increasing electrode size, and correlated well to decreasing Ron.
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