Thermal transport in a dielectric T-shaped quantum wire

Ping Yang*, Qing-feng Sun, Hong Guo, Bambi Hu

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

61 Citations (Scopus)


We investigate the thermal transport in a special ballistic system, the dielectric T-shaped quantum wire. It is found that the transmission coefficient of phonons exhibits the oscillation behavior similar to that of electrons. Due to the wide energy range involved in thermal transport, thermal conductance changes smoothly with temperature, which is different from the electrical conductance. We find that thermal conductance is a monotonic function of temperature at any system. In the low temperature limit, thermal conductance tends to π2 kB2 T 3h against all system parameters, even though the transmission coefficient is not unity.

Original languageEnglish
Article number235319
Number of pages6
JournalPhysical Review B
Issue number23
Publication statusPublished - 15 Jun 2007

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


Dive into the research topics of 'Thermal transport in a dielectric T-shaped quantum wire'. Together they form a unique fingerprint.

Cite this