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arXiv 1003.5116cond-mat.softcond-mat.mes-hall
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独立石墨烯的热涨落

Thermal fluctuations of free standing graphene

F. L. Braghin, N. Hasselmann

摘要:

在自洽计算束缚膜弹性常数与动量相关的基础上,利用非微扰重整化群方法计算了石墨烯热涨落与动量的关系.我们发现一个尖锐的交叉从微扰到异常制度,在良好的协议与Monte Carlo结果的石墨烯,并给出一个准确的值的交叉规模。我们的工作有力地支持了石墨烯被很好地描述为系留膜的观点。涟漪自然出现在我们的分析中。

英文摘要:

We use non-perturbative renormalization group techniques to calculate the momentum dependence of thermal fluctuations of graphene, based on a self-consistent calculation of the momentum dependent elastic constants of a tethered membrane. We find a sharp crossover from the perturbative to the anomalous regime, in excellent agreement with Monte Carlo results for graphene, and give an accurate value for the crossover scale. Our work strongly supports the notion that graphene is well described as a tethered membrane. Ripples emerge naturally from our analysis.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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