Monte carlo simulations of carrier transport and relaxation in superlattices |
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| Affiliation: | 1. Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Sungkyunkwan University, Suwon 16419, Korea;2. Department of Chemistry, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea;3. Creative Research Institute, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea;4. Department of Biophysics, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea;5. Department of Physics & Astronomy and Center for Computational Sciences, Mississippi State University, Mississippi State, MS 39762, USA;1. Immunology Section, Immunology Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892, USA;2. Theoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, NM 87545, USA;3. Biostatistics Research Branch, National Institute of Allergy and Infectious Diseases, Rockville, MD 20892, USA;4. AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA;5. Human Immunology Section, Immunology Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892, USA;6. HIV Dynamics and Replication Program, Frederick National Laboratory for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA;7. Laboratory of Immunosenescence, National Institutes of Biomedical Innovation, Health, and Nutrition, Osaka 567-0085, Japan;1. Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, Ontario, Canada L1H 7K4;2. School of Railway Engineering, Center of Excellence in Railway Transportation, Iran University of Science and Technology, Farjam Street – Narmak, Tehran 16846-13114, Iran |
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| Abstract: | Monte Carlo simulations of carrier transport through an undoped superlattice into an extended well are described. The results illustrate clearly the important role played by LO phonons in relaxing the energy and the desirability of designing structures which minimize the need for acoustic phonon participation. Attention is drawn to the fact that although, for the standard structures investigated, the LO phonon relaxation rate is relatively independent of the miniband and/or the quantum well eigenstates, the precise shape of the form-factor for an allowed LO transition could play an important role in deciding the relative number of 'slow' carriers in an actual system. |
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