Abstract
As a first step to clarify the microscopic working mechanism of atomic switches using solid electrolytes, we have examined electronic states and electron transport properties of Ag-Ag 2S-Ag and Cu-Ta 2O 5-Pt systems using standard density functional theory and novel non-equilibrium Green's function method. In both the systems, we found that the bridge structures consisting of excess Ag or Cu in the middle solid electrolyte layer work as electronic conduction paths. In Cu-Ta 2O 5-Pt, we also found that O vacancy is much less effective for the enhancement of electronic conduction than excess Cu.
| Original language | English |
|---|---|
| Pages (from-to) | 577-582 |
| Number of pages | 6 |
| Journal | Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals |
| Volume | 73 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Aug 1 2009 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials
- Metals and Alloys
- Materials Chemistry
Cite this
First principles calculations on electron conduction paths in solid electrolytes : Toward an understanding of the working mechanism of atomic switches. / Watanabe, S.; Gu, T. K.; Wang, Z. C.; Tada, T.
In: Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals, Vol. 73, No. 8, 01.08.2009, p. 577-582.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - First principles calculations on electron conduction paths in solid electrolytes
T2 - Toward an understanding of the working mechanism of atomic switches
AU - Watanabe, S.
AU - Gu, T. K.
AU - Wang, Z. C.
AU - Tada, T.
PY - 2009/8/1
Y1 - 2009/8/1
N2 - As a first step to clarify the microscopic working mechanism of atomic switches using solid electrolytes, we have examined electronic states and electron transport properties of Ag-Ag 2S-Ag and Cu-Ta 2O 5-Pt systems using standard density functional theory and novel non-equilibrium Green's function method. In both the systems, we found that the bridge structures consisting of excess Ag or Cu in the middle solid electrolyte layer work as electronic conduction paths. In Cu-Ta 2O 5-Pt, we also found that O vacancy is much less effective for the enhancement of electronic conduction than excess Cu.
AB - As a first step to clarify the microscopic working mechanism of atomic switches using solid electrolytes, we have examined electronic states and electron transport properties of Ag-Ag 2S-Ag and Cu-Ta 2O 5-Pt systems using standard density functional theory and novel non-equilibrium Green's function method. In both the systems, we found that the bridge structures consisting of excess Ag or Cu in the middle solid electrolyte layer work as electronic conduction paths. In Cu-Ta 2O 5-Pt, we also found that O vacancy is much less effective for the enhancement of electronic conduction than excess Cu.
UR - http://www.scopus.com/inward/record.url?scp=70349623415&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70349623415&partnerID=8YFLogxK
U2 - 10.2320/jinstmet.73.577
DO - 10.2320/jinstmet.73.577
M3 - Article
AN - SCOPUS:70349623415
VL - 73
SP - 577
EP - 582
JO - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
JF - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
SN - 0021-4876
IS - 8
ER -