Imperial College London

Peter Haynes

Faculty of EngineeringDepartment of Materials

Head of Department of Materials
 
 
 
//

Contact

 

+44 (0)20 7594 5158p.haynes Website CV

 
 
//

Assistant

 

Miss Catherine Graham +44 (0)20 7594 3330

 
//

Location

 

201BRoyal School of MinesSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Avraam:2011:10.1103/PhysRevB.83.241402,
author = {Avraam, PW and Hine, NDM and Tangney, P and Haynes, PD},
doi = {10.1103/PhysRevB.83.241402},
journal = {PHYSICAL REVIEW B},
title = {Factors influencing the distribution of charge in polar nanocrystals},
url = {http://dx.doi.org/10.1103/PhysRevB.83.241402},
volume = {83},
year = {2011}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - We perform first-principles calculations of wurtzite GaAs nanorods to explore the factors determining charge distributions in polar nanostructures. We show that both the direction and magnitude of the dipole moment d of a nanorod, and its electric field, depend sensitively on how its surfaces are terminated and do not depend strongly on the spontaneous polarization of the underlying lattice. We identify two physical mechanisms by which d is controlled by the surface termination, and we show that the excess charge on the nanorod ends is not strongly localized. We discuss the implications of these results for tuning nanocrystal properties, and for their growth and assembly.
AU - Avraam,PW
AU - Hine,NDM
AU - Tangney,P
AU - Haynes,PD
DO - 10.1103/PhysRevB.83.241402
PY - 2011///
SN - 1098-0121
TI - Factors influencing the distribution of charge in polar nanocrystals
T2 - PHYSICAL REVIEW B
UR - http://dx.doi.org/10.1103/PhysRevB.83.241402
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=000291197600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
VL - 83
ER -