Resonant coherent Bragg rod analysis of strained epitaxial heterostructures
Publication
, Journal Article
Kumah, DP; Riposan, A; Cionca, CN; Husseini, NS; Clarke, R; Lee, JY; Millunchick, JM; Yacoby, Y; Schlepütz, CM; Björck, M; Willmott, PR
Published in: Applied Physics Letters
September 15, 2008
The resonant response of the complex x-ray scattering factor has been used in conjunction with the coherent Bragg rod analysis phase-retrieval algorithm to determine the composition and strain profiles of ultrathin layers of GaAs grown on InGaAs buffers. The buffer layers are nominally latticed matched with the InP substrate and the subsequent GaAs growth is compared at two different temperatures: 480 and 520 °C. We show that electron density maps extracted from Bragg rod scans measured close to the Ga and As K -edges can be used to deconvolute roughness and intermixing. It is found that indium incorporation and roughening lead to a significant reduction of the strain in this system. © 2008 American Institute of Physics.
Duke Scholars
Published In
Applied Physics Letters
DOI
ISSN
0003-6951
Publication Date
September 15, 2008
Volume
93
Issue
8
Related Subject Headings
- Applied Physics
- 51 Physical sciences
- 40 Engineering
- 10 Technology
- 09 Engineering
- 02 Physical Sciences
Citation
APA
Chicago
ICMJE
MLA
NLM
Kumah, D. P., Riposan, A., Cionca, C. N., Husseini, N. S., Clarke, R., Lee, J. Y., … Willmott, P. R. (2008). Resonant coherent Bragg rod analysis of strained epitaxial heterostructures. Applied Physics Letters, 93(8). https://doi.org/10.1063/1.2975835
Kumah, D. P., A. Riposan, C. N. Cionca, N. S. Husseini, R. Clarke, J. Y. Lee, J. M. Millunchick, et al. “Resonant coherent Bragg rod analysis of strained epitaxial heterostructures.” Applied Physics Letters 93, no. 8 (September 15, 2008). https://doi.org/10.1063/1.2975835.
Kumah DP, Riposan A, Cionca CN, Husseini NS, Clarke R, Lee JY, et al. Resonant coherent Bragg rod analysis of strained epitaxial heterostructures. Applied Physics Letters. 2008 Sep 15;93(8).
Kumah, D. P., et al. “Resonant coherent Bragg rod analysis of strained epitaxial heterostructures.” Applied Physics Letters, vol. 93, no. 8, Sept. 2008. Scopus, doi:10.1063/1.2975835.
Kumah DP, Riposan A, Cionca CN, Husseini NS, Clarke R, Lee JY, Millunchick JM, Yacoby Y, Schlepütz CM, Björck M, Willmott PR. Resonant coherent Bragg rod analysis of strained epitaxial heterostructures. Applied Physics Letters. 2008 Sep 15;93(8).
Published In
Applied Physics Letters
DOI
ISSN
0003-6951
Publication Date
September 15, 2008
Volume
93
Issue
8
Related Subject Headings
- Applied Physics
- 51 Physical sciences
- 40 Engineering
- 10 Technology
- 09 Engineering
- 02 Physical Sciences