Alteration of superconductivity and radial breathing modes in suspended ropes of carbon nanotubes by organic polymer coatings

被引：10
作者：
Ferrier, M. [1 ]
Kasumov, A. Yu.
Agache, V.
Buchaillot, L.
Bonnot, A-M.
Naud, C.
Bouchiat, V.
Deblock, R.
Kociak, M.
Kobylko, M.
Gueron, S.
Bouchiat, H.
机构：
[1] Univ Paris 11, Phys Solides Lab, CNRS, F-91405 Orsay, France
[2] CNRS, UMR 8520, Inst Elect Microelect & Nanotechnol, F-59652 Villeneuve Dascq, France
[3] CNRS, Etud Proprietes Elect Solides Lab, F-38042 Grenoble, France
[4] CNRS, Ctr Rech Tres Basses Temp, F-38042 Grenoble, France
来源：
PHYSICAL REVIEW B | 2006年 / 74卷 / 24期
关键词：
D O I：
10.1103/PhysRevB.74.241402
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have altered the superconductivity of a suspended rope of single walled carbon nanotubes, by coating it with organic polymers. Upon coating, the normal state resistance of the rope changes by less than 20%. But superconductivity, which on the bare rope shows up as a substantial resistance decrease below 300 mK, is gradually suppressed. We correlate this to the suppression of radial breathing modes, measured with raman spectroscopy on suspended single and double-walled carbon nanotubes. This points to the breathing phonon modes as being responsible for superconductivity in ropes of single walled carbon nanotubes.
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页数：4
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