Isotope effect on the thermal conductivity of boron nitride nanotubes

被引：347

作者：

Chang, C. W. ^{[1
]}

Fennimore, A. M.

Afanasiev, A.

Okawa, D.

Ikuno, T.

Garcia, H.

Li, Deyu

Majumdar, A.

Zettl, A.

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA

[4] Vanderbilt Univ, Dept Mech Engn, Nashville, TN 37235 USA

[5] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Sci Mat, Berkeley, CA 94720 USA

[6] Univ Calif Berkeley, Ctr Integrated Nanomech Syst, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.97.085901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the temperature-dependent thermal conductivity kappa(T) of individual multiwall boron nitride nanotubes using a microfabricated test fixture that allows direct transmission electron microscopy characterization of the tube being measured. kappa(T) is exceptionally sensitive to isotopic substitution, with a 50% enhancement in kappa(T) resulting for boron nitride nanotubes with 99.5% B-11. For isotopically pure boron nitride nanotubes, kappa rivals that of carbon nanotubes of similar diameter.

引用

页数：4

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