Crystalline and quasi-crystalline patterns in X-Ray diffraction from periodic arrays of quantum dots

A.A. Darhuber, V. Holy, G. Bauer, P.D. Wang, Y.P. Song, C.M. Sotomayor Torres, M.C. Holland

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)

Abstract

The structural properties of a square periodic array of quantum dots of a GaAs/AlAs superlattice were studied by x-ray diffractometry. If the azimuthal direction of the primary beam can be expressed by integer Miller indices, the profile is perfectly periodic. However, if its azimuthal orientation is determined by tg() ˜ 0.618 (the golden mean value), the diffraction maxima exhibit Fibonacci sequences in reciprocal space, i.e. a quasi-periodic diffraction curve.
Original languageEnglish
Pages (from-to)131-136
Number of pages6
JournalEurophysics Letters
Volume32
Issue number2
DOIs
Publication statusPublished - 1995

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