Open AccessPressure-Induced Transition in Magnetoresistance of Single-Walled Carbon Nanotubes
Author(s) -
Jiajia Cai,
Li Lü,
W. J. Kong,
Hongwei Zhu,
Chao Zhang,
Bingqing Wei,
Dingcai Wu,
Feng Liu
Publication year - 2006
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.688
H-Index - 673
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.97.026402
Subject(s) - magnetoresistance , hydrostatic pressure , carbon nanotube , materials science , condensed matter physics , magnetic field , nanotechnology , thermodynamics , physics , quantum mechanics
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.
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