Thermal fluctuations of free-standing graphene

被引：62

作者：

Braghin, F. L. ^{[1
]}

Hasselmann, N. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Norte, Int Inst Phys, BR-59072970 Natal, RN, Brazil

来源：

PHYSICAL REVIEW B | 2010年 / 82卷 / 03期

关键词：

RENORMALIZATION-GROUP; CRYSTALLINE;

D O I：

10.1103/PhysRevB.82.035407

中图分类号：

T [工业技术];

学科分类号：

08 ;

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.

引用

页数：5

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