We studied the microscopic kinetics of the amorphous-liquid interface in supercooled laser-melt silicon by means of molecular dynamics computer simulations. The interface velocity was obtained as a function of temperature by direct simulation of the interface motion in an amorphous-liquid model system. The temperature dependence of the kinetic prefactor was extracted from the interface velocity function and compared to the values of self-diffusivity obtained from independent molecular dynamics simulations of bulk amorphous Si. The kinetic prefactor for interfacial diffusion shows a distinctly non-Arrhenius behavior which is attributed to Fulcher-Vogel kinetics in the supercooled liquid. © 2000 American Institute of Physics.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
Brambilla, L., Colombo, L., Rosato, V., & Cleri, F. (2000). Solid-liquid interface velocity and diffusivity in laser-melt amorphous silicon. Applied Physics Letters, 77(15), 2337 - 2339. https://doi.org/10.1063/1.1317535