Journal Article

DESY-2014-02827

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Embedded GaAs nanopillars studied by high resolution reciprocal space mapping and SEM

Zozulya, A. (Corresponding Author)DESY* ; Slobodskyy, T.Extern* ; Bartsch, T. ; Wetzel, A.Extern* ; Sonnenberg, D.Extern* ; Heyn, C. ; Sprung, M.DESY* ; Hansen, W.

2014
Wiley-VCH Weinheim

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Please use a persistent id in citations: doi:10.1002/pssa.201300200

Abstract: Novel nanostructures based on GaAs nanopillars epitaxially embedded in air-gap heterostructures have been studied by high resolution reciprocal space mapping using synchrotron radiation. The measurements were motivated by thermal conductance measurements on samples with different pillar densities that show unexpected behavior. X-ray diffraction data and scanning electron microscopy (SEM) images were used to assess the quality of investigated heterostructures with different pillar densities. Our SEM studies reveal high quality of stripes and trenches in the air-gap heterostructures. X-ray diffraction profiles extracted from the measured reciprocal space maps confirm the homogeneous profile of air gaps. We found no indication of material contact between the top and the bottom layers of the air-gap heterostructures due to sagging. In addition, the structural quality of the bulk and the top layers of heterostructures is addressed.

Note: (c) WILEY-VCH Verlag GmbH & Co. KGaA. Post referee full text in progress.

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Contributing Institute(s):

1. Experimentebetreuung PETRA III (FS-PE)
2. DOOR-User (DOOR)
3. Advanced Study Group of the University of Hamburg (UNI-ASG)

Research Program(s):

1. PETRA Beamline P10 (POF2-54G14) (POF2-54G14)

Experiment(s):

1. PETRA Beamline P10 (PETRA III)

Appears in the scientific report 2014

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Database coverage:
; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record

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