dc.contributor.author | Vatanparast, Maryam | |
dc.contributor.author | Vullum, Per Erik | |
dc.contributor.author | Nord, Magnus Kristofer | |
dc.contributor.author | Zuo, Jian Min | |
dc.contributor.author | Reenaas, Turid Worren | |
dc.contributor.author | Holmestad, Randi | |
dc.date.accessioned | 2017-10-18T07:04:32Z | |
dc.date.available | 2017-10-18T07:04:32Z | |
dc.date.created | 2017-09-25T22:30:32Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 1742-6588 | |
dc.identifier.uri | http://hdl.handle.net/11250/2460660 | |
dc.description.abstract | Geometric phase analysis (GPA), a fast and simple Fourier space method for strain analysis, can give useful information on accumulated strain and defect propagation in multiple layers of semiconductors, including quantum dot materials. In this work, GPA has been applied to high resolution Z-contrast scanning transmission electron microscopy (STEM) images. Strain maps determined from different g vectors of these images are compared to each other, in order to analyze and assess the GPA technique in terms of accuracy. The SmartAlign tool has been used to improve the STEM image quality getting more reliable results. Strain maps from template matching as a real space approach are compared with strain maps from GPA, and it is discussed that a real space analysis is a better approach than GPA for aberration corrected STEM images. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | IOP Publishing | nb_NO |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Strategy for reliable strain measurement in InAs/GaAs materials from high-resolution Z-contrast STEM images | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.source.volume | 902 | nb_NO |
dc.source.journal | Journal of Physics, Conference Series | nb_NO |
dc.source.issue | 012021 | nb_NO |
dc.identifier.doi | 10.1088/1742-6596/902/1/012021 | |
dc.identifier.cristin | 1498002 | |
dc.relation.project | Norges forskningsråd: 228956 | nb_NO |
dc.description.localcode | Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | nb_NO |
cristin.unitcode | 194,66,20,0 | |
cristin.unitname | Institutt for fysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |