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Strained Quantum Rings

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Physics of Quantum Rings

Part of the book series: NanoScience and Technology ((NANO))

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Abstract

Electronic structures of quantum rings strongly depend on the strain profiles caused by the material environment around the ring. We will investigate the strain distributions and electronic structures of quantum rings capped by a support material of which lattice constant is smaller than those of the substrate and active material, and compare the results with a conventional quantum ring. The support material considerably weakens the longitudinal strains and biaxial strain of quantum rings as well as the hole confinement potentials. The unique band alignment of the structure enables the coexistence of type-I and type-II band alignments.

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Acknowledgements

This work was partially supported by Korea Institute for Advanced Study (P.M.) grant funded by the Korea government, and also by Internal Program (2E23910) of Korea Institute of Science and Technology (W.J.C.).

Author information

Authors and Affiliations

  1. Department of Physics, Tohoku University, Sendai, Japan

    Pilkyung Moon

  2. Department of Materials Science and Engineering, Seoul National University, Seoul, Korea

    Euijoon Yoon

  3. Center for OptoElectronic Convergence System, Korea Institute of Science and Technology, Seoul, Korea

    Won Jun Choi

  4. Department of Emerging Materials Science, Daegu Gyeongbuk Institute of Science and Technology, Daegu, Korea

    JaeDong Lee

  5. Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA

    Jean-Pierre Leburton

Authors
  1. Pilkyung Moon
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  2. Euijoon Yoon
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  3. Won Jun Choi
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  4. JaeDong Lee
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  5. Jean-Pierre Leburton
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Corresponding author

Correspondence to Pilkyung Moon .

Editor information

Editors and Affiliations

  1. Institute for Integrative Nanosciences Institute for Integrative Nanosciences, Leibniz Institute for Solid State and Ma, Dresden, Germany

    Vladimir M. Fomin

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Moon, P., Yoon, E., Choi, W.J., Lee, J., Leburton, JP. (2014). Strained Quantum Rings. In: Fomin, V. (eds) Physics of Quantum Rings. NanoScience and Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-39197-2_13

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