Figure 9.

Resistance states. (a) The resistance states with DC cycles of the S1 and S2 devices. (b) AC endurances of approximately 105 cycles are observed for both devices. However, the Ge0.5Se0.5 devices (with more Ge content) are more stable.

Rahaman et al. Nanoscale Research Letters 2012 7:614   doi:10.1186/1556-276X-7-614
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