Large 1/f noise of unipolar resistance switching and its percolating nature
We investigated the 1/f noise of Pt/NiO/Pt capacitors that show unipolar resistance switching.
When they were switched from the low to high resistance states, the power spectral density
of the voltage fluctuation was increased by approximately five orders of magnitude. At 100 K,
the relative resistance fluctuation SR/R 2 in the low resistance state displayed a power law
dependence on the resistance R: ie, SR/R 2∝ R w, where w= 1.6±0.2. This behavior
can be explained by percolation theory; however, at higher temperatures or near the …
When they were switched from the low to high resistance states, the power spectral density
of the voltage fluctuation was increased by approximately five orders of magnitude. At 100 K,
the relative resistance fluctuation SR/R 2 in the low resistance state displayed a power law
dependence on the resistance R: ie, SR/R 2∝ R w, where w= 1.6±0.2. This behavior
can be explained by percolation theory; however, at higher temperatures or near the …
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