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- Baik, Jeong Min
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Short range scattering effect of InAs quantum dots in the transport properties of two dimensional electron gas
- Author(s)
- Kannan, E. S., Kim, Gil-Ho, Kumar, Sanjeev, Farrer, I., Ritchie, D. A., Son, Jun Ho, Baik, Jeong Min, Lee, Jong-Lam, Youn, D. H., Kang, Kwang-Yong
- Issued Date
- 2007-04
- Citation
- APPLIED PHYSICS LETTERS, v.90, no.15
- 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.
- Publisher
- AMER INST PHYSICS
- ISSN
- 0003-6951
- Keyword
- ALGAN/GAN HETEROSTRUCTURES, CENTERS, TIME
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