Double-resonant Raman scattering in graphite: Interference effects, selection rules, and phonon dispersion

• DOI: 10.1103/physrevb.70.155403
• Publication Date: 2004-10-08T16:53:16Z
• Authors: J. Maultzsch; S. Reich; C. Thomsen
• Keywords: Brillouin zone; Dispersion relation

We present a comprehensive analysis of double-resonant Raman scattering in graphite and derive an analytical expression for the cross section $D$ mode one dimension. The extension to two dimensions does not change phonon wave vectors. In full integration section, contributions by phonons from exactly $K$ point cancel due destructive interference. calculate explicitly based on recent experimental data dispersion. Applying selection rules, mapping additional disorder-induced second-order modes onto Brillouin zone is obtained.