TY - JOUR
T1 - Laser-induced coherent phonons in graphite and carbon nanotubes
T2 - Model and simulations
AU - Garcia, M. E.
AU - Dumitricǎ, T.
AU - Jeschke, H. O.
PY - 2004/1/1
Y1 - 2004/1/1
N2 - We present a microscopic description of the excitation of coherent phonons as a response to femtosecond laser excitation. Using molecular dynamics simulations based on a tight-binding electronic Hamiltonian we discuss two examples of laser-induced coherent phonons: (1) excitation of the E 2g1 phonon mode in graphite under high external pressure and (2) the displacive excitation of two perpendicular phonon modes in carbon nanotubes. We discuss the influence of these coherent phonons on the ablation mechanisms.
AB - We present a microscopic description of the excitation of coherent phonons as a response to femtosecond laser excitation. Using molecular dynamics simulations based on a tight-binding electronic Hamiltonian we discuss two examples of laser-induced coherent phonons: (1) excitation of the E 2g1 phonon mode in graphite under high external pressure and (2) the displacive excitation of two perpendicular phonon modes in carbon nanotubes. We discuss the influence of these coherent phonons on the ablation mechanisms.
UR - http://www.scopus.com/inward/record.url?scp=4344613403&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4344613403&partnerID=8YFLogxK
U2 - 10.1007/s00339-004-2690-2
DO - 10.1007/s00339-004-2690-2
M3 - Article
AN - SCOPUS:4344613403
VL - 79
SP - 855
EP - 857
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
SN - 0947-8396
IS - 4-6
ER -