EPJ Web of Conferences
Volume 23, 2012Eurasia-Pacific Summer School & Conference on Correlated Electrons
|Number of page(s)||3|
|Published online||07 March 2012|
Strongly correlated electron behavior in carbon nanotubes
1 University of California, Riverside, CA
2 Columbia University, New York, NY
3 IBM TJ Watson Research Center, Yorktown Heights, NY
4 New York University School of Medicine, New York, NY
a e-mail: firstname.lastname@example.org
One dimensional systems offer a fascinating platform for investigating and understanding the collective and many-body behavior of interacting electron systems. We report low-temperature transport experiments on carbon nanotubes, which are archetypal one-dimensional systems that have either semiconducting or metallic band structure depending on their radius and chirality. Semiconducting nanotubes at low densities exhibit Wigner crystal behavior, while nominally metallic nanotubes are observed to have an energy gap at half filling, consistent with theories of a Mott insulating state in nanotubes. Our results demonstrate nanotubes’ promise for studying a variety of tunable correlated electron phenomena in one dimension.
© Owned by the authors, published by EDP Sciences, 2012
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