<P>Low-frequency noise of individual MWNTs was investigated with different metal electrodes. Irrespective of the ohmic or non-ohmic voltage–current characteristics, a strong dependence of the noise on the metal contacts was observed. The g...
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https://www.riss.kr/link?id=A107585600
2010
-
SCI,SCIE,SCOPUS
학술저널
335702
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>Low-frequency noise of individual MWNTs was investigated with different metal electrodes. Irrespective of the ohmic or non-ohmic voltage–current characteristics, a strong dependence of the noise on the metal contacts was observed. The g...
<P>Low-frequency noise of individual MWNTs was investigated with different metal electrodes. Irrespective of the ohmic or non-ohmic voltage–current characteristics, a strong dependence of the noise on the metal contacts was observed. The good electrical contacts with Pd or Pt electrodes enable a quasi-ballistic transport with a bigger exponent in the relation of <img SRC='http://ej.iop.org/images/0957-4484/21/33/335702/nano353381ieqn1.gif' ALIGN='MIDDLE' ALT='S_I \propto R^{4.8} '/>, similar to 2D metallic film or graphene. On the other hand, the noise in the case of Cr or Ti electrodes is almost linear with the resistance of the nanotubes, which may be an index of the influence of the contacts in the CNTs. </P>
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