Probing phonon emission via hot carrier transport in suspended graphitic multilayers |
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Authors: | Carlos Diaz-Pinto Sungbae Lee Viktor G. Hadjiev |
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Affiliation: | a Department of Physics, University of Houston, Houston, TX 77204, United Statesb The Texas Center for Superconductivity, University of Houston, Houston, TX 77204, United States |
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Abstract: | We study hot carrier transport under magnetic fields up to 15 T in suspended graphitic multilayers through differential conductance ( ) spectroscopy. Distinct high-energy anomalies have been observed and shown to be related to intrinsic phonon-emission processes in graphite. The evolution of such anomalies under magnetic fields is further understood as a consequence of inter-Landau level cyclotron-phonon resonance scattering. The observed magneto-phonon effects not only shed light on the physical mechanisms responsible for high-current transport in graphitic systems, but also offer new perspectives for optimizing performance in graphitic nano-electronic devices. |
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Keywords: | A. Graphite B. Nanostructure D. Hot electron transport D. Phonon emission |
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