Direct observation of charge transfer in solid electrolyte for electrochemical metallization memory.
X-ray absorption spectroscopy study on an electrochemical metallization cell of GeS(x) :Ag shows clear experimental evidence of chemical ionization of the active metal atoms (Ag) and consequent transfer of charge to the electrolyte (GeS(x) ). The valence electron density and its change upon the Ag intercalation are depicted schematically as transparent waves on the Ge-S bond structure in amorphous GeS(x) .
Institut für Werkstoffe der Elektrotechnik, 2 & JARA-Fundamentals of Future Information Technology, RWTH Aachen University, 52056 Aachen, Germany.
Deok-Yong
DY
Cho
Ilia
I
Valov
Jan
J
van den Hurk
Stefan
S
Tappertzhofen
Rainer
R
Waser
D055615:Electrical Equipment and Supplies; D004563:Electrochemistry; D004579:Electron Transport; D005857:Germanium / Q000737:chemistry; D012834:Silver / Q000737:chemistry*
D005857:Germanium; D012834:Silver