期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 78, 期 9, 页码 -出版社
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.78.094714
关键词
graphene; Hall coefficient; Hall conductivity; two-dimensional graphite; level broadening; Dirac point
资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan
- Grants-in-Aid for Scientific Research [19054004] Funding Source: KAKEN
The weak-field Hall conductivity is calculated in monolayer graphene within a self-consistent Born approximation. The Hall conductivity sufficiently away from the Dirac point exhibits the dependence qualitatively in agreement with the Boltzmann result, but it deviates in the region near zero energy, the width of which is singularly dependent on the scattering strength. The experimental results can be reasonably well understood by assuming that the scattering strength increases with the decrease of the electron concentration and saturates in this region.
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