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@ARTICLE{Marchewka:256607,
author = {Marchewka, Astrid and Roesgen, Bernd and Skaja, Katharina
and Du, Hongchu and Jia, Chun-Lin and Mayer, Joachim and
Rana, Vikas and Waser, Rainer and Menzel, Stephan},
title = {{N}anoionic {R}esistive {S}witching {M}emories: {O}n the
{P}hysical {N}ature of the {D}ynamic {R}eset {P}rocess},
journal = {Advanced Electronic Materials},
volume = {2},
number = {1},
issn = {2199-160X},
address = {Chichester},
publisher = {Wiley},
reportid = {FZJ-2015-06474},
pages = {n/a - n/a},
year = {2016},
abstract = {Resistive switching memories based on the valence change
mechanism have attracted great attention due to their
potential use in future nanoelectronics. The working
principle relies on ion migration in an oxide matrix and
subsequent nanoscale redox processes leading to a resistance
change. While switching from a low resistive to a high
resistive state, different intermediate resistance levels
can be programmed by changing the maximum applied voltage,
making resistive switches highly interesting for multibit
data storage and neuromorphic applications. To date, this
phenomenon, which is known as gradual reset, has been
reported in various experimental studies, but a
comprehensive physical understanding of this key phenomenon
is missing. Here, a combined experimental and numerical
modeling approach is presented to address these issues.
Time-resolved pulse measurements are performed to study the
reset kinetics in TaOx-based nano-crossbar structures. The
results are analyzed using a 2D dynamic model of
nonisothermal drift–diffusion transport in the mixed
electronic–ionic conducting oxide including the effect of
contact potential barriers. The model accurately describes
the experimental data and provides physical insights into
the processes determining the gradual reset. The gradual
nature can be attributed to the temperature-accelerated
oxygen-vacancy motion being governed by drift and diffusion
processes approaching an equilibrium situation.},
cin = {PGI-7 / PGI-5},
ddc = {621.3},
cid = {I:(DE-Juel1)PGI-7-20110106 / I:(DE-Juel1)PGI-5-20110106},
pnm = {524 - Controlling Collective States (POF3-524)},
pid = {G:(DE-HGF)POF3-524},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000370335000012},
doi = {10.1002/aelm.201500233},
url = {https://juser.fz-juelich.de/record/256607},
}