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Baik, Jeong Min
Nano Energy and Environmental Materials Lab
Research Interests
  • Nanogenerators, antimicrobial material, catalysis, smart sensors

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Short range scattering effect of InAs quantum dots in the transport properties of two dimensional electron gas

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Title
Short range scattering effect of InAs quantum dots in the transport properties of two dimensional electron gas
Author
Kannan, E. S.Kim, Gil-HoKumar, SanjeevFarrer, I.Ritchie, D. A.Son, Jun HoBaik, Jeong MinLee, Jong-LamYoun, D. H.Kang, Kwang-Yong
Keywords
ALGAN/GAN HETEROSTRUCTURES; CENTERS; TIME
Issue Date
2007-04
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.90, no.15, pp. -
Abstract
Short range interaction between two dimensional electron gas (2DEG) and InAs quantum dots embedded in the GaAs/AlGaAs quantum well is investigated as a function of carrier density. At low carrier density the interaction is significantly characterized by a transport to quantum lifetime ratio of less than 5. However, with an increase in carrier density, quantum lifetime is observed to undergo a sharp transition from 0.17 to 0.25 ps. This is attributed to the screening of short range repulsive scattering due to InAs quantum dots by the 2DEG.
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DOI
10.1063/1.2720704
ISSN
0003-6951
Appears in Collections:
MSE_Journal Papers
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