Positron Annihilation Lifetime Spectroscopy of ZnO Bulk Samples Authors: A. Zubiaga, F. Plazaola, J.A. García, F. Tuomisto, V. Muñoz-Sanjosé and R. Tena-Zaera Year: 2007 Journal: Phys. Rev. B Volume: 76 More information http://journals.aps.org/prb/abstract/10.1103/PhysRevB.76.085202