Abstract
Real-time Raman measurements have been performed on graphite under 3-keV -ion irradiation with a time resolution of 6 sec. Ion flux of 3× and 4× ions/ sec are used. The graphite lattice damage is estimated by the relative intensity ratio of the disorder-induced peak (∼1360 ) with respect to the Raman-active -mode peak (∼1580 ). The relative intensity change in the Raman spectrum caused by the irradiation is explained in terms of a reduction in the phonon correlation length due to defects.
- Received 1 May 1991
DOI:https://doi.org/10.1103/PhysRevB.45.78
©1992 American Physical Society