Reversal of current blockade through multiple trap correlations - Condensed Matter > Materials ScienceReport as inadecuate




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Abstract: Current noise in electronic devices usually arises from uncorrelated chargingevents, with individual transitions resolved only at low temperatures. However,in 1-D nanotube-based transistors, we have observed random telegraph signalRTS with unprecedented signal-to-noise ratio at room temperature. Inaddition, we find evidence for cooperative multi-trap interactions that giverise to a characteristically terminated RTS: current blockade induced by onetrap is found to fully reverse through electrostatic `passivation- by another.Our observations are well described by a robust quantum transport model thatdemonstrates how strong correlation and fast varying potentials can resolveenergetically proximal states along a 1-D channel.



Author: Jack Chan, Brian Burke, Kenneth Evans, Keith A. Williams, Smitha Vasudevan, Mingguo Liu, Joe Campbell, Avik W. Ghosh

Source: https://arxiv.org/







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