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Arrangement of the MWCNT film sample and the surface acoustic wave device.
Transmission electron microscopy image and diffraction pattern of the MWCNT film sample.
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.
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.
Frequency dependence of temperature coefficients of HOPG, MWCNT, , and samples.
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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