Hot electron relaxation and phonon dynamics in graphene

被引：163

作者：

Butscher, S. ^{[1
]}

Milde, F. ^{[1
]}

Hirtschulz, M. ^{[1
]}

Malic, E. ^{[1
]}

Knorr, A. ^{[1
]}

机构：

[1] Tech Univ Berlin, Nichlineare Optik & Quantenelektronik, Inst Theoret Phys, D-10623 Berlin, Germany

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 20期

关键词：

D O I：

10.1063/1.2809413

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using density-matrix theory, we microscopically calculate the relaxation dynamics of photoexcited electrons in graphene. Electron-phonon coupling leads to an initially ultrafast energy dissipation and to a nonthermal phonon occupation of the highest optical phonon modes. We also calculate the temporal evolution of the electronic temperature and find good agreement with recent experimental work. (c) 2007 American Institute of Physics.

引用

页数：3

共 17 条

[11] Phonon dispersion in graphite -: art. no. 075501 [J].