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Metallic–nonmetallic transition on the conductivity temperature dependence of multiwall carbon nanotubes
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10.1063/1.1927696
/content/aip/journal/apl/86/22/10.1063/1.1927696
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/22/10.1063/1.1927696

Figures

Image of FIG. 1.
FIG. 1.

Arrangement of the MWCNT film sample and the surface acoustic wave device.

Image of FIG. 2.
FIG. 2.

Transmission electron microscopy image and diffraction pattern of the MWCNT film sample.

Image of FIG. 3.
FIG. 3.

Schematic diagram of dipole model for calculation of the piezoelectric field at the surface of the MWCNT film sample. The denotes a dipole formed on the surface of piezoelectric crystal.

Image of FIG. 4.
FIG. 4.

Temperature dependencies of the conductivity of the MWCNT film sample, which are measured at various frequencies of 50, 150, 200, 250, and 600 MHz, respectively.

Image of FIG. 5.
FIG. 5.

Frequency dependence of temperature coefficients of HOPG, MWCNT, , and samples.

Tables

Generic image for table
Table I.

Ratios of the perpendicular and parallel electric field components, , at the surface of the MWNT film sample. Here, and are frequency and wavelength of the SAW, respectively.

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/content/aip/journal/apl/86/22/10.1063/1.1927696
2005-05-25
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Metallic–nonmetallic transition on the conductivity temperature dependence of multiwall carbon nanotubes
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/22/10.1063/1.1927696
10.1063/1.1927696
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