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Quantum Transport Thermometry for Electrons in Graphene

Research output: Contribution to journalJournal article

  • K. Kechedzhi
  • D. W. Horsell
  • F. V. Tikhonenko
  • A. K. Savchenko
  • R. V. Gorbachev
  • I. V. Lerner
  • Vladimir Falko
Article number066801
<mark>Journal publication date</mark>13/02/2009
<mark>Journal</mark>Physical Review Letters
Issue number6
Number of pages4
<mark>Original language</mark>English


We propose a method of measuring the electron temperature T-e in mesoscopic conductors and demonstrate experimentally its applicability to micron-size graphene devices in the linear-response regime (T-e approximate to T, the bath temperature). The method can be especially useful in case of overheating, T-e > T. It is based on analysis of the correlation function of mesoscopic conductance fluctuations. Although the fluctuation amplitude strongly depends on the details of electron scattering in graphene, we show that T-e extracted from the correlation function is insensitive to these details.

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© 2009 The American Physical Society