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APS » Journals » Phys. Rev. Lett. » Volume 55 » Issue 17
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Phys. Rev. Lett. 55, 1768–1770 (1985)

Quasiperiodic GaAs-AlAs Heterostructures

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R. Merlin, K. Bajema, and Roy Clarke
Department of Physics, The University of Michigan, Ann Arbor, Michigan 48109

F. -Y. Juang and P. K. Bhattacharya
Solid State Electronics Laboratory, Department of Electrical Engineering and Computer Science, The University of Michigan, Ann Arbor, Michigan 48109

Received 28 June 1985; published in the issue dated 21 October 1985

We report the first realization of a quasiperiodic (incommensurate) superlattice. The sample, grown by molecular-beam epitaxy, consists of alternating layers of GaAs and AlAs to form a Fibonacci sequence in which the ratio of incommensurate periods is equal to the golden mean τ. X-ray and Raman scattering measurements are presented that reveal some of the unique properties of these novel structures.

© 1985 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.55.1768
DOI:
10.1103/PhysRevLett.55.1768
PACS:
68.55.+b, 61.50.Em, 78.30.Gt, 78.70.Ck
 
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