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@ARTICLE{Arndt:838401,
author = {Arndt, Benedikt and Phillips, Monifa and Meiners, Thorsten
and Menzel, Stephan and Skaja, Katharina and Dittmann,
Regina and Parreira, Pedro and Offi, Francesco and Borgatti,
Francesco and Waser, R. and Panaccione, Giancarlo and
MacLaren, Donald A.},
title = {{S}pectroscopic {I}ndications of {T}unnel {B}arrier
{C}harging as the {S}witching {M}echanism in {M}emristive
{D}evices},
journal = {Advanced functional materials},
volume = {27},
number = {45},
issn = {1616-301X},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2017-07013},
pages = {1702282 -},
year = {2017},
abstract = {Resistive random access memory is a promising,
energy-efficient, low-power “storage class memory”
technology that has the potential to replace both flash
storage and on-chip dynamic memory. While the most widely
employed systems exhibit filamentary resistive switching,
interface-type switching systems based on a tunable tunnel
barrier are of increasing interest. They suffer less from
the variability induced by the stochastic filament formation
process and the choice of the tunnel barrier thickness
offers the possibility to adapt the memory device current to
the given circuit requirements. Heterostructures consisting
of a yttria-stabilized zirconia (YSZ) tunnel barrier and a
praseodymium calcium manganite (PCMO) layer are employed.
Instead of spatially localized filaments, the resistive
switching process occurs underneath the whole electrode. By
employing a combination of electrical measurements, in
operando hard X-ray photoelectron spectroscopy and electron
energy loss spectroscopy, it is revealed that an exchange of
oxygen ions between PCMO and YSZ causes an electrostatic
modulation of the effective height of the YSZ tunnel barrier
and is thereby the underlying mechanism for resistive
switching in these devices.},
cin = {PGI-7 / JARA-FIT},
ddc = {620},
cid = {I:(DE-Juel1)PGI-7-20110106 / $I:(DE-82)080009_20140620$},
pnm = {521 - Controlling Electron Charge-Based Phenomena
(POF3-521)},
pid = {G:(DE-HGF)POF3-521},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000416828500002},
doi = {10.1002/adfm.201702282},
url = {https://juser.fz-juelich.de/record/838401},
}