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Self-Organized InGaAs Quantum Rings -- Fabrication and Spectroscopy

  • Axel Lorke
  • Jorge M. Garcia
  • Ralf Blossey
  • Richard J. Luyken
  • Pierre M. Petroff
Chapter
Part of the Advances in Solid State Physics book series (ASSP, volume 43)

Abstract

We report on recent experiments on semiconductor quantum rings, fabricated by self-organized Stranski-Krastanov growth. In the first part of this review we focus on the growth mechanisms that lead to formation of annular islands, with emphasis on the influence of diffusion and surface tension. In the second part, we summarize the results of intraband spectroscopy, which show the influence that the ring morphology has on the electronic properties, in particular, when a magnetic flux quantum threads the interior of the islands.

Keywords

Ground State Energy Ring Formation Back Contact Quantum Ring Calculated Ground State 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Authors and Affiliations

  • Axel Lorke
    • 1
  • Jorge M. Garcia
    • 2
  • Ralf Blossey
    • 3
  • Richard J. Luyken
    • 4
  • Pierre M. Petroff
    • 5
  1. 1.ExperimentalphysikUniversität Duisburg-EssenDuisburgGermany
  2. 2.Instituto de MicroelectrónicaParque Tecnologico de MadridTres Cantos, MadridSpain
  3. 3.Interdisciplinary Research Institute, IEMN, Cité ScientifiqueVilleneuve d'Ascq CedexFrance
  4. 4.Infineon Technologies, Corporate Research STMünchenGermany
  5. 5.Materials DepartmentUniversity of CaliforniaSanta BarbaraUSA

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