期刊
APPLIED PHYSICS EXPRESS
卷 4, 期 8, 页码 -出版社
JAPAN SOC APPLIED PHYSICS
DOI: 10.1143/APEX.4.085101
关键词
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资金
- CREST, Japan Science and Technology Agency (JST)
- Grants-in-Aid for Scientific Research [23000008] Funding Source: KAKEN
The relaxation process of photoexcited electrons in graphene is simulated by using a Monte Carlo method. A full-band treatment is used for the electron-phonon interaction, and an approximate treatment is used for the electron-electron interaction. The Monte Carlo simulations reveal an ultrafast relaxation of electrons with a time constant of about 20 fs, which is close to a recent experimental result. Despite the ultrafast relaxation of electrons, a population inversion for the photoexcited electron-hole system is expected. (C) 2011 The Japan Society of Applied Physics
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