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Radial breathing mode frequency of single-walled carbon nanotubes under strain
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10.1063/1.2969033
/content/aip/journal/apl/93/6/10.1063/1.2969033
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/6/10.1063/1.2969033
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

RBM frequency vs tube diameter. The results from first-principle calculations by Lawler et al. (Ref. 20) tight binding calculations by Popov and Lambin (Ref. 22), and ab initio calculations by Kurti et al. (Ref. 16) are also presented for comparison. The inset shows the product of the RBM frequency and the tube diameter against the inverse of the tube diameter. It is seen clearly that the inversely proportional law is broken down for small tubes.

Image of FIG. 2.
FIG. 2.

Radial loading. (a) Normalized RBM frequency vs strain. (b) Diameter and chirality dependence of the normalized strain derivative of the RBM frequency (when ). The blue dash dot line shows the variation of the limit value (for large tubes) of the normalized strain derivative of the RBM frequency with increasing tube chiral angle.

Image of FIG. 3.
FIG. 3.

Axial loading. (a) Normalized RBM frequency vs strain. (b) Diameter and chirality dependence of the normalized strain derivative of the RBM frequency (when ). The blue dash dot line shows the variation of the limit value (for large tubes) of the normalized strain derivative of the RBM frequency with increasing tube chiral angle.

Image of FIG. 4.
FIG. 4.

Normalized RBM frequency vs torsional strain of tubes with different chiralities but approximately the same diameter.

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/content/aip/journal/apl/93/6/10.1063/1.2969033
2008-08-11
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Radial breathing mode frequency of single-walled carbon nanotubes under strain
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/6/10.1063/1.2969033
10.1063/1.2969033
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