Pressure-induced transition in magnetoresistance of single-walled carbon nanotubes

We applied hydrostatic pressure (up to 10 GPa) to single-walled carbon nanotube bundles at low temperature (down to 2 K) to measure their magnetoresistance (MR) in a field up to 12 T. We found a pressure-induced transition in MR from positive to negative in the high-field regime. The onset of the tr...

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Bibliographic Details
Published inPhysical review letters Vol. 97; no. 2; p. 026402
Main Authors Cai, J Z, Lu, L, Kong, W J, Zhu, H W, Zhang, C, Wei, B Q, Wu, D H, Liu, Feng
Format Journal Article
LanguageEnglish
Published United States 14.07.2006
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Summary:We applied hydrostatic pressure (up to 10 GPa) to single-walled carbon nanotube bundles at low temperature (down to 2 K) to measure their magnetoresistance (MR) in a field up to 12 T. We found a pressure-induced transition in MR from positive to negative in the high-field regime. The onset of the transition occurs at approximately 1.5 GPa, which correlates closely with the tube shape transitions. The characteristics of the high-pressure MR are consistent with a model of pressure-induced two-dimensional weak localization.
ISSN:0031-9007
DOI:10.1103/physrevlett.97.026402