  We present numerical investigations of the dynamics on the energy landscape
of a realistic model of the high-temperature ceramic a-Si3B3N7. Below a
critical temperature Tc = 2000 K, the system is no longer in equilibrium, and
we predict that the material has a glass transition in this temperature range
at high pressure. Analyzing the two-time energy correlation function shows
aging in this system, which is linked to the geometrical properties of the
energy landscape.

Statistical Mechanics;Disordered Systems and Neural Networks;Materials Science