Journal article
Microscopic analysis of the laser-induced femtosecond graphitization of diamond
Publication Details
Authors: | Jeschke, H.; Garcia, M.; Bennemann, K. |
Publisher: | AMER PHYSICAL SOC |
Publication year: | 1999 |
Journal: | Physical Review B |
Pages range : | R3701-R3704 |
Journal acronym: | Phys. Rev. |
Volume number: | 60 |
Start page: | R3701 |
End page: | R3704 |
Number of pages: | 4 |
ISSN: | 1098-0121 |
Abstract
We present a theoretical study of ultrafast phase transitions induced by femtosecond laser pulses of arbitrary form. Molecular-dynamics simulations on time dependent potential-energy surfaces derived from a microscopic Hamiltonian are performed. Applying this method to diamond, we show that a nonequilibrium transition to graphite takes place for a wide range of laser pulse durations and intensities. This ultrafast transition (similar to 100 fs) is driven by the suppression of the diamond minimum in the potential-energy surface of the laser excited system. [S0163-1829(99)50730-3].
We present a theoretical study of ultrafast phase transitions induced by femtosecond laser pulses of arbitrary form. Molecular-dynamics simulations on time dependent potential-energy surfaces derived from a microscopic Hamiltonian are performed. Applying this method to diamond, we show that a nonequilibrium transition to graphite takes place for a wide range of laser pulse durations and intensities. This ultrafast transition (similar to 100 fs) is driven by the suppression of the diamond minimum in the potential-energy surface of the laser excited system. [S0163-1829(99)50730-3].
