期刊
APPLIED PHYSICS LETTERS
卷 98, 期 23, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3597154
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资金
- MEXT
- Strategic Japanese-German Cooperative Program
- JST
Atomic switch, operating by forming and dissolving a metal-protrusion in a nanogap, shows an exponentially large bias dependence and a faster switching with increasing temperature and decreasing off-resistance. These major characteristics are explained with a simple model where the electrochemical potential at the subsurface of solid-electrolyte electrode determines the precipitation rate of metal atoms and the electric-field in the nanogap strongly affects the formation of metal-protrusion. Theoretically calculated switching time, based on this model, well reproduced the measured properties of a Cu2S-based atomic switch as a function of bias, temperature and off-resistance, providing a significant physical insight into the mechanism. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3597154]
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