Local pressures in Zn chalcogenide polymorphs T. Ouahrani, J. M. Menendez, M. Marqués, J. Contreras-García, V. G. Baonza and J. M. Recio EPL, 98 5 (2012) 56002 Published online: 08 June 2012 DOI: 10.1209/0295-5075/98/56002