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Determination of polarization-fields across polytype interfaces in InAs nanopillars.

Authors
  • Li, Luying
  • Gan, Zhaofeng
  • McCartney, Martha R
  • Liang, Hanshuang
  • Yu, Hongbin
  • Yin, Wan-Jian
  • Yan, Yanfa
  • Gao, Yihua
  • Wang, Jianbo
  • Smith, David J
Type
Published Article
Journal
Advanced Materials
Publisher
Wiley (John Wiley & Sons)
Publication Date
Feb 01, 2014
Volume
26
Issue
7
Pages
1052–1057
Identifiers
DOI: 10.1002/adma.201304021
PMID: 24535970
Source
Medline
Keywords
License
Unknown

Abstract

Polarization fields within InAs nanopillars with zincblende(ZB)/wurtzite(WZ) polytype stacking are quantified. The displacement of charged ions inside individual tetrahedra of WZ regions is measured at the atomic scale. The variations of spontaneous polarization along the interface normal are related to strain at interfaces of different polytypes. Thus, direct correlation between local atomic structure and electric properties is demonstrated.

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