Volume 87, Number 5, September 2009
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||23 September 2009|
Reversible heat flow through the carbon tube junction
Department of Physics and Astronomy, Northwestern University - Evanston, IL 60208, USA
Corresponding author: email@example.com
Accepted: 17 August 2009
Microscopic mechanisms of the externally controlled reversible thermoelectric effect through the carbon tube junction (NJ) are examined theoretically. The theory interprets earlier experiments in terms of ballistic motion the phase-correlated electrons (e) and holes (h) along the tube section . We find that the direction and magnitude of the heat flow critically depend on the gate voltage and on the source-drain voltage , both. The voltages adjust the electron energy to match the quantized state and van Hove singularities inside . Potential applications of the reversible Peltier effect are discussed.
PACS: 73.23.Hk – Coulomb blockade; single-electron tunneling / 73.63.Kv – Quantum dots / 73.40.Gk – Tunneling
© EPLA, 2009
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