期刊
PHYSICAL REVIEW B
卷 79, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.79.075414
关键词
carbon; energy gap; ground states; nanostructured materials; RPA calculations
资金
- IPM
We study the effect of band gap on the ground-state properties of Dirac electrons in a doped graphene within the random phase approximation at zero temperature. Band gap dependence of the exchange, correlation, and ground-state energies and the compressibility are calculated. In addition, we show that the conductance in the gapped graphene is smaller than gapless one. We also calculate the band-gap dependence of charge compressibility and it decreases with increasing the band-gap values.
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