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%2F00216305%3A26620%2F24%3APU151506" target="_blank" >RIV/00216305:26620/24:PU151506 - 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

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Chemistry Chemical Physics

ISSN

1463-9076

e-ISSN

1463-9084

Volume of the periodical

26

Issue of the periodical within the volume

13

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

10069-10077

UT code for WoS article

001184940300001

EID of the result in the Scopus database

2-s2.0-85187674804