期刊
PHYSICAL REVIEW LETTERS
卷 102, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.085303
关键词
-
资金
- Spanish Ministry of Education and Science [FIS2006-02356, FIS2005-04181]
- Junta de Andalucia, [P06-FQM-01869]
- Generalitat de Catalunya [2005GR-00779]
The phase diagram of the first layer of He-4 adsorbed on a single graphene sheet has been calculated by a series of diffusion Monte Carlo calculations including corrugation effects. Since the number of C-He interactions is smaller than in graphite, the binding energy of He-4 atoms to graphene is reduced approximately 13.4 K per helium atom. Our results indicate that the phase diagram is qualitatively similar to that of helium on top of graphite. A two-dimensional liquid film on graphene is predicted to be metastable with respect to the commensurate solid but the difference in energy between both phases is very small, opening the possibility of such a liquid film to be experimentally observed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据