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Author Hone, J. ♦ Whitney, M. ♦ Piskoti, C. ♦ Zettl, A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ CARBON ♦ FULLERENES ♦ THERMAL CONDUCTIVITY ♦ TEMPERATURE DEPENDENCE ♦ TEMPERATURE RANGE 0000-0013 K ♦ TEMPERATURE RANGE 0013-0065 K ♦ TEMPERATURE RANGE 0065-0273 K ♦ TEMPERATURE RANGE 0273-0400 K ♦ DIAMONDS ♦ MEAN FREE PATH ♦ PHONONS
Abstract We have measured the temperature-dependent thermal conductivity {kappa}(T) of crystalline ropes of single-walled carbon nanotubes from 350 K to 8 K. {kappa}(T) decreases smoothly with decreasing temperature, and displays linear temperature dependence below 30 K. Comparison with electrical conductivity experiments indicates that the room-temperature thermal conductivity of a single nanotube may be comparable to that of diamond or in-plane graphite, while the ratio of thermal to electrical conductance for a given sample indicates that the thermal conductivity is dominated by phonons at all temperatures. Below 30 K, the linear temperature dependence and estimated magnitude of {kappa}(T) imply an energy-independent phonon mean free path of {approximately}0.5{endash}1.5 {mu}m. {copyright} {ital 1999} {ital The American Physical Society}
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 1999-01-01
Publisher Place United States
Journal Physical Review, B: Condensed Matter
Volume Number 59
Issue Number 4


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