Direct visualization and 3D reconstruction of conductive filaments in aSiO2 material-based memristive device

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F24%3A39921771" target="_blank" >RIV/00216275:25310/24:39921771 - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/content/articlelanding/2024/cp/d4cp00274a" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2024/cp/d4cp00274a</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d4cp00274a" target="_blank" >10.1039/d4cp00274a</a>

Result language
angličtina
Original language name
Direct visualization and 3D reconstruction of conductive filaments in aSiO2 material-based memristive device
Original language description
Observation of conductive filaments has greatly aided the development of theoretical models of memristive devices. In this work, we visualized and reconstructed the conductive filaments in a Cu/Cu-doped SiO2/W device employing a focused ion beam (FIB) as a milling technique. The SEM images taken from the device after 150 DC sweep cycles showed that Joule heat played a vital role in determining the morphology of a conductive filament, where the vaporization of the conductive filament resulted in the creation of defects, including particles, voids, and cavities. The competition between the formation and vaporization of conductive filaments generally induces a remarkable current fluctuation. Since Cu-doped SiO2 was utilized as the electrolyte, the vapors exfoliated adjacent single layers. FIB milling proceeded in top-down and front-back modes; thus, a 3D model of conductive filaments and defects was constructed according to a series of FIB-SEM images. This methodology is promising for a future failure analysis of memristive devices.
Czech name
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Czech description
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Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project
<a href="/en/project/EF17_048%2F0007376" target="_blank" >EF17_048/0007376: High sensitive sensors and low density materials based on polymeric nanocomposites - NANOMAT</a>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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