[en] Phase change materials are covalent materials that may store the information by optical or electrical contrast as they can switch between an amorphous semiconducting phase (ON state) and a crystalline metallic phase (OFF state).
We show that these materials have an anomalous mode-specific Grüneisen parameter related to a non-harmonic deformation potential.
Research center :
Laue Langevin Institute
Disciplines :
Physics
Author, co-author :
Gaspard, Jean-Pierre ; Université de Liège - ULiège > Département de physique > Département de physique
Language :
English
Title :
Bonding mechanism of Phase Change Materials (PCM): the role a non-harmonic deformation potential
Alternative titles :
[fr] Liaison chimique des materiaux à changement de phases. Le rôle du potentiel de déformation non-harmonique
