Determination of polarization-fields across polytype interfaces in InAs nanopillars

Luying Li; Zhaofeng Gan; Martha McCartney; Hanshuang Liang; Hongbin Yu; Wan Jian Yin; Yanfa Yan; Yihua Gao; Jianbo Wang; David Smith

doi:10.1002/adma.201304021

Determination of polarization-fields across polytype interfaces in InAs nanopillars

Luying Li, Zhaofeng Gan, Martha McCartney, Hanshuang Liang, Hongbin Yu, Wan Jian Yin, Yanfa Yan, Yihua Gao, Jianbo Wang, David Smith

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

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.

Original language	English (US)
Pages (from-to)	1052-1057
Number of pages	6
Journal	Advanced Materials
Volume	26
Issue number	7
DOIs	https://doi.org/10.1002/adma.201304021
State	Published - Feb 19 2014

Keywords

InAs
nanopillars
off-axis electron holography
polytype heterocrystalline structures
probe-corrected HAADF imaging
spontaneous polarization

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.201304021

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title = "Determination of polarization-fields across polytype interfaces in InAs nanopillars",

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.",

keywords = "InAs, nanopillars, off-axis electron holography, polytype heterocrystalline structures, probe-corrected HAADF imaging, spontaneous polarization",

author = "Luying Li and Zhaofeng Gan and Martha McCartney and Hanshuang Liang and Hongbin Yu and Yin, {Wan Jian} and Yanfa Yan and Yihua Gao and Jianbo Wang and David Smith",

year = "2014",

month = feb,

day = "19",

doi = "10.1002/adma.201304021",

language = "English (US)",

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journal = "Advanced Materials",

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T1 - Determination of polarization-fields across polytype interfaces in InAs nanopillars

AU - Li, Luying

AU - Gan, Zhaofeng

AU - McCartney, Martha

AU - Liang, Hanshuang

AU - Yu, Hongbin

AU - Yin, Wan Jian

AU - Yan, Yanfa

AU - Gao, Yihua

AU - Wang, Jianbo

AU - Smith, David

PY - 2014/2/19

Y1 - 2014/2/19

N2 - 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.

AB - 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.

KW - InAs

KW - nanopillars

KW - off-axis electron holography

KW - polytype heterocrystalline structures

KW - probe-corrected HAADF imaging

KW - spontaneous polarization

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EP - 1057

JO - Advanced Materials

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IS - 7

ER -

Determination of polarization-fields across polytype interfaces in InAs nanopillars

Abstract

Keywords

ASJC Scopus subject areas

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