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Properties of One-Dimensional Conductors Daniel E. Prober, Yale University, DMR 0907082

Properties of One-Dimensional Conductors Daniel E. Prober, Yale University, DMR 0907082.

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Properties of One-Dimensional Conductors Daniel E. Prober, Yale University, DMR 0907082

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  1. Properties of One-Dimensional ConductorsDaniel E. Prober, Yale University, DMR 0907082 We are developing an experiment to use terahertz signals (~1012 Hz) to probe the 1D quantum behaviorpredicted for high frequency charge excitations in a one-dimensional conductor such as a single-walled carbon nanotube. As a precursor to this work, we have studied how the nanotube electron system loses energy to the environment. We have measured the rate of energy loss – the thermal conductance – as a function of the nanotube length and the temperature of the electron system.1 We have also demonstrated how this thermal conductance can be used to describe radio frequency detection in an individual nanotube.2 Initial tests of Terahertz spectroscopy have been conducted on newly fabricated samples. In related work, we are exploring the possibility of superconductivity in novel one-dimensional materials such as doped carbon nanotubes and boron-based nanotubes and nanowires. [1] D.F. Santavicca, J.D. Chudow, D.E. Prober, M.S. Purewal and P. Kim, Nano. Lett. 10, 4538 (2010) [2] D.F. Santavicca, J.D. Chudow, D.E. Prober, M.S. Purewal and P. Kim, Appl. Phys. Lett. 98, 223503 (2011) Atomic force microscope image of a carbon nanotube between metal contacts with a side gate. Thermal conductance G for energy loss of the electron system in nanotubes of different lengths as they are heated by an electrical current.1

  2. Properties of One-Dimensional Conductors Daniel E. Prober, Yale University, DMR 0907082 Prober lab members actively participate in science outreach with the New Haven public school system. Activities in the past year include performing science demonstrations in several local public schools, as well as serving as judges for the annual New Haven Science Fair and judging in the Invention Convention of the Mauro Magnet School.. Professor Daniel Prober and graduate student Anthony Annunziata demonstrate the extreme cold of liquid nitrogen to a class of third graders. Postdoctoral associate Daniel Santavicca talks with a team of high school students at the New Haven Science Fair. Graduate student Joel Chudow serves as a judge at the New Haven Science Fair.

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