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Microstructure of quantum dots ensembles by EXAFS spectroscopy

S B Erenburg1,4, S V Trubina1, N V Bausk1, A V Dvurechenskii2, A I Nikiforov2, V G Mansurov2, K S Zhuravlev2 and S G Nikitenko3

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We investigate the microstructure of Ge/Si and GaN/AlN sandwiches containing vertically aligned QDs. The study establishes an influence of blocking layers (Si, AlN) thickness, number of QDs layers (Ge, GaN) in heterostructure and annealing temperature on the microstructure characteristics of systems with quantum dots.


PACS

78.70.Dm X-ray absorption spectra

68.65.Hb Quantum dots (patterned in quantum wells)

81.40.Ef Cold working, work hardening; annealing, post-deformation annealing, quenching, tempering recovery, and crystallization

Subjects

Condensed matter: electrical, magnetic and optical

Surfaces, interfaces and thin films

Condensed matter: structural, mechanical & thermal

Nanoscale science and low-D systems

Dates

Issue 1 (2009)



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