TY  - JOUR
AU  - Hensling, F. V. E.
AU  - Heisig, T.
AU  - Raab, N.
AU  - Bäumer, Christoph
AU  - Dittmann, R.
TI  - Tailoring the switching performance of resistive switching SrTiO3 devices by SrO interface engineering
JO  - Solid state ionics
VL  - 325
SN  - 0167-2738
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2018-05279
SP  - 247 - 250
PY  - 2018
AB  - Redox-based resistive switching is one of the most-promising concepts in the focus of research to meet the ever-growing demand for faster and smaller non-volatile memory devices. In this work we present detailed studies of the impact of cation stoichiometry and surface segregation effects on the performance of the valence change memory model material SrTiO3. In order to clarify if the enhanced switching performance of Sr-rich SrTiO3 devices can be attributed to SrO segregation or to the formation of Sr-rich extended defects, we artificially engineered the formation of SrO islands by depositing additional SrO on top of stoichiometric SrTiO3. We thereby unravel that the enhanced switching performance is solely accounted for by the formation of SrO islands and not influenced by extended defects. Consequently following our findings, we design devices with a further improved retention by tailoring the amount of SrO on the surface.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000449131900033
DO  - DOI:10.1016/j.ssi.2018.09.003
UR  - https://juser.fz-juelich.de/record/851754
ER  -