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 VG and on the source-drain voltage VSD, both. The voltages adjust the electron energy ε to match the quantized state and van Hove singularities inside . Potential applications of the reversible Peltier effect are discussed.
ASJC Scopus subject areas
- Physics and Astronomy(all)