期刊
PHYSICAL REVIEW B
卷 79, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.79.073403
关键词
Boltzmann equation; electrical resistivity; electron density; graphene; impurities; phonons
资金
- Department of Science and Technology of Yunnan Province, China
- Ministry of Education, China
- Flemish Science Foundation [FWO-V1]
On the basis of the momentum-balance equation derived from the Boltzmann equation in which electron interactions with impurities and acoustic and optic phonons are included, we examine the dependence of the resistivity in graphene on temperature and electron density. Simple analytical expressions for the different contributions to the resistivity are obtained. Our results reproduce recent experimental findings and we are able to understand the different temperature dependence of the resistivity for low and high density samples.
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