Cluster scattering effects on phonon conduction in graphene

被引：97

作者：

Mingo, Natalio ^{[1
,2
]}

Esfarjani, K. ^{[2
]}

Broido, D. A. ^{[3
]}

Stewart, D. A. ^{[4
]}

机构：

[1] CEA, LITEN, F-38054 Grenoble 9, France

[2] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA

[3] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA

[4] Cornell Univ, Cornell Nanoscale Facil, Ithaca, NY 14853 USA

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 04期

基金：

美国国家科学基金会;

关键词：

TOTAL-ENERGY CALCULATIONS; THERMAL-CONDUCTIVITY; EFFICIENCY; DEFECTS;

D O I：

10.1103/PhysRevB.81.045408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The phonon-scattering cross section associated with isotopic clusters is evaluated from first principles and used to estimate the reduction in thermal conductance of wide graphene samples. A strong sensitivity of the thermal conductivity toward clustering is predicted for micrometer-sized samples at low temperatures. Important differences are obtained between the atomistically computed cross section, and existing analytical approximations, emphasizing the importance of atomistic investigations of thermal transport. Finally, possible techniques are suggested for synthesizing graphene containing isotopic clusters.

引用

页数：6

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