Formation and instability of silver nanofilament in Ag-based programmable metallization cells.
In this paper, we report on the formation and rupture of Ag nanofilament on planar Ag/TiO2/Pt cells using visual observation. During the forming process, the filament tends to stay very thin. Specifically, it is so thin that it breaks up into a chain of nanospheres (according to Rayleigh instability) right after the formation has been completed. Similar mechanical breakup may also impact vertically stacked cells, causing reliability concerns.
Hsiung
Chang-Po
CP
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan 30013, Republic of China. d937524@oz.nthu.edu.tw
Liao
Hsin-Wei
HW
Gan
Jon-Yiew
JY
Wu
Tai-Bo
TB
Hwang
Jenn-Chang
JC
Chen
Frederick
F
Tsai
Ming-Jinn
MJ