Imperial College London
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ProfessorRogerWhatmore

Faculty of Engineering, Department of Materials

Visiting Professor
 
 
 
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Contact

 

r.whatmore

 
 
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Location

 

Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{McQuaid:2017:10.1038/NCOMMS15105,
author = {McQuaid, R and Campbell, M and Whatmore, R and Kumar, A and Gregg, JM},
doi = {10.1038/NCOMMS15105},
journal = {Nature Communications},
title = {Injection and controlled motion of conducting domain walls in improper ferroelectric Cu-Cl boracite},
url = {http://dx.doi.org/10.1038/NCOMMS15105},
volume = {8},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Ferroelectric domain walls constitute a completely new class of sheet-like functional material. Moreover, since domain walls are generally writable, erasable, and mobile, they could be useful in functionally agile devices: for example, creating and moving conducting walls could make or break electrical connections in new forms of reconfigurable nanocircuitry. However, significant challenges exist: site-specific injection and annihilation of planar walls, which show robust conductivity, has not been easy to achieve. Here, we report the observation, mechanical writing and controlled movement of charged conducting domain walls in the improper ferroelectric Cu3B7O13Cl. Walls are straight, tens of microns long, and exist as a consequence of elastic compatibility conditions between specific domain pairs. We show that site-specific injection of conducting walls of up to hundreds of microns in length can be achieved through locally applied point-stress and, once created, that they can be moved and repositioned using applied electric fields.
AU  - McQuaid,R
AU  - Campbell,M
AU  - Whatmore,R
AU  - Kumar,A
AU  - Gregg,JM
DO  - 10.1038/NCOMMS15105
PY  - 2017///
SN  - 2041-1723
TI  - Injection and controlled motion of conducting domain walls in improper ferroelectric Cu-Cl boracite
T2  - Nature Communications
UR  - http://dx.doi.org/10.1038/NCOMMS15105
UR  - http://hdl.handle.net/10044/1/45087
VL  - 8
ER  -
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