- Conference date: 23–26 February 2011
- Location: Chandigarh (India)
By analyzing first‐principles molecular‐dynamics simulations of different telluride amorphous networks, we develop a method for the enumeration of radial and angular topological constraints, and show that the phase diagram of the most popular system Ge‐Sb‐Te can be split into two compositional elastic phases: a tellurium rich flexible phase and a stressed rigid phase that contains most of the materials used in phase‐change applications. This sound atomic scale insight should open new avenues for the understanding of phase‐change materials and other complex amorphous materials from the viewpoint of rigidity.
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