Determination of polarization-fields across polytype interfaces in InAs nanopillars.
basic_science · Level V
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- Record sourced from PubMed, PMID 24535970.
- Also identified by DOI 10.1002/adma.201304021.
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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.