Time-resolved Raman spectroscopy of optical phonons in graphite: Phonon anharmonic coupling and anomalous stiffening

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Yan H, Song D, Mak KF, Chatzakis I, Maultzsch J, Heinz TF
Zeitschrift: Physical Review B
Verlag: AMER PHYSICAL SOC
Jahr der Veröffentlichung: 2009
Band: 80
Heftnummer: 12
ISSN: 1098-0121


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.



FAU-Autoren / FAU-Herausgeber

Maultzsch, Janina Prof. Dr.
Lehrstuhl für Experimentalphysik


Autor(en) der externen Einrichtung(en)
Columbia University


Zitierweisen

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).

BibTeX: 

Zuletzt aktualisiert 2018-08-08 um 17:40