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arXiv · 1110.5614

Cross talk by extensive domain wall motion in arrays of ferroelectric nanocapacitors

Yunseok Kim·Hee Han·Ionela Vrejoiu·Woo Lee·Dietrich Hesse·Marin Alexe
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Abstract

We report on extensive domain wall motion in ferroelectric nanocapacitor arrays investigated by piezoresponse force microscopy. Under a much longer or higher bias voltage pulse, compared to typical switching pulse conditions, domain walls start to propagate into the neighbouring capacitors initiating a significant cross-talk. The propagation paths and the propagated area into the neighbouring capacitors were always the same under repeated runs. The experimental and the simulated results show that the observed cross-talk is related to the capacitor parameters combined with local defects. The results can be helpful to test the reliability of nanoscale ferroelectric memory devices.

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Yunseok Kim, Hee Han, Ionela Vrejoiu, Woo Lee, Dietrich Hesse, Marin Alexe. 2011-11-16. Cross talk by extensive domain wall motion in arrays of ferroelectric nanocapacitors. https://doi.org/10.1063/1.3661166

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