Kr and 4He Adsorption on Individual Suspended Single-Walled Carbon Nanotubes

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作者
Hao-Chun Lee
Oscar E. Vilches
Zenghui Wang
Erik Fredrickson
Peter Morse
Richard Roy
Boris Dzyubenko
David H. Cobden
机构
[1] University of Washington,Department of Physics
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Physical adsorption; Single wall carbon nanotubes; Resonance frequency; Adsorption and conductance; Krypton and Helium adsorption;
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摘要
We report mass and conductance adsorption isotherms of Kr on individual, single-walled, suspended carbon nanotubes for 53 K<T<90 K for several devices, and of 4He for 5 K<T<8 K for two devices. Different nanotubes, probably of different diameter and/or chirality, yield different phase diagrams, full monolayer coverages, and partial wetting characteristics for Kr. The 4He results show, for one of the devices, a greatly reduced heat of adsorption as compared to the well studied system of 4He on graphite.
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页码:338 / 349
页数:11
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