Time-resolved Raman spectroscopy of optical phonons in graphite: Phonon anharmonic coupling and anomalous stiffening
Yan H, Song D, Mak KF, Chatzakis I, Maultzsch J, Heinz TF (2009)
Publication Status: Published
Publication Type: Journal article
Publication year: 2009
Journal
Publisher: AMER PHYSICAL SOC
Book Volume: 80
Article Number: 121403
Journal Issue: 12
DOI: 10.1103/PhysRevB.80.121403
Abstract
Time-resolved Raman spectroscopy has been applied to probe the anharmonic coupling and electron-phonon interaction of optical phonons in graphite. From the decay of the transient anti-Stokes scattering of the G-mode following ultrafast excitation, we measured a lifetime of 2.2 +/- 0.1 ps for zone-center optical phonons. We also observed a transient stiffening of G-mode phonons, an effect attributed to the reduction of the electron-phonon coupling for high electronic temperatures.
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APA:
Yan, H., Song, D., Mak, K.F., Chatzakis, I., Maultzsch, J., & Heinz, T.F. (2009). Time-resolved Raman spectroscopy of optical phonons in graphite: Phonon anharmonic coupling and anomalous stiffening. Physical Review B, 80(12). https://dx.doi.org/10.1103/PhysRevB.80.121403
MLA:
Yan, Hugen, et al. "Time-resolved Raman spectroscopy of optical phonons in graphite: Phonon anharmonic coupling and anomalous stiffening." Physical Review B 80.12 (2009).
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