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Direct Identification of the Conducting Channels in a Functioning Memristive Device
Author(s) -
Strachan John Paul,
Pickett Matthew D.,
Yang J. Joshua,
Aloni Shaul,
David Kilcoyne A. L.,
MedeirosRibeiro Gilberto,
Stanley Williams R.
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201000186
Subject(s) - materials science , identification (biology) , titanium dioxide , channel (broadcasting) , nanotechnology , absorption (acoustics) , optoelectronics , computer science , telecommunications , botany , metallurgy , biology , composite material
Titanium dioxide memristive devices have been non‐destructively characterized using x‐ray absorption spectromicroscopy and TEM. These techniques allow direct identification of the chemistry and structure of the conducting channel responsible for the bipolar resistance switching seen in these devices. Within the TiO 2 matrix, we observe the formation of a Ti 4 O 7 Magnéli phase possessing metallic properties and ordered planes of oxygen vacancies.