Scaling behaviors of RESET voltages and currents in unipolar resistance switching

Details Scaling behaviors of RESET voltages and currents in unipolar resistance switching Scaling behaviors of RESET voltages and currents in unipolar resistance switching

2008-10-22

arxiv.org/abs/0810.4043v1

Physics

Condensed Matter

Materials Science

17 pages, 4 figures

Scientific paper

10.1063/1.3036532

Unipolar switching phenomena have attracted a great deal of recent attention, but the wide distributions of switching voltages still pose major obstacles for scientific advancement and practical applications. Using NiO capacitors, we investigated the distributions of the RESET voltage and current. We found that they scaled with the resistance value Ro in the low resistance state, and that the scaling exponents varied at Ro = 30 Ohm. We explain these intriguing scaling behaviors and their crossovers by analogy with percolation theory. We show that the connectivity of conducting filaments plays a crucial role in the RESET process.

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