This title appears in the Scientific Report :
2017
Please use the identifier:
http://dx.doi.org/10.1021/acsami.6b13821 in citations.
Controlled Charging of Ferroelastic Domain Walls in Oxide Ferroelectrics
Controlled Charging of Ferroelastic Domain Walls in Oxide Ferroelectrics
Conductive domain walls (DWs) in ferroic oxides as device elements are a highly attractive research topic because of their robust and agile response to electric field. Charged DWs possessing metallic-type conductivity hold the highest promises in this aspect. However, their intricate creation, low s...
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Personal Name(s): | Wei, Xian-Kui (Corresponding author) |
---|---|
Sluka, Tomas / Fraygola, Barbara / Feigl, Ludwig / Du, Hongchu / Jin, Lei / Jia, Chun-Lin / Setter, Nava | |
Contributing Institute: |
Mikrostrukturforschung; PGI-5 Physik Nanoskaliger Systeme; ER-C-1 |
Published in: | ACS applied materials & interfaces, 9 (2017) 7, S. 6539 - 6546 |
Imprint: |
Washington, DC
Soc.
2017
|
DOI: |
10.1021/acsami.6b13821 |
Document Type: |
Journal Article |
Research Program: |
Controlling Configuration-Based Phenomena |
Publikationsportal JuSER |
Conductive domain walls (DWs) in ferroic oxides as device elements are a highly attractive research topic because of their robust and agile response to electric field. Charged DWs possessing metallic-type conductivity hold the highest promises in this aspect. However, their intricate creation, low stability, and interference with nonconductive DWs hinder their investigation and the progress toward future applications. Here, we find that conversion of the nominally neutral ferroelastic 90° DWs into partially charged DWs in Pb(Zr0.1Ti0.9)O3 thin films enables easy and robust control over the DW conductivity. By employing transmission electron microscopy, conductive atomic force microscopy and phase-field simulation, our study reveals that charging of the ferroelastic DWs is controlled by mutually coupled DW bending, type of doping, polarization orientation and work-function of the adjacent electrodes. Particularly, the doping outweighs other parameters in controlling the DW conductivity. Understanding the interplay of these key parameters not only allows us to control and optimize conductivity of such ferroelastic DWs in the oxide ferroelectrics but also paves the way for utilization of DW-based nanoelectronic devices in the future. |