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- 1. Phys. Rev. B 75, 193201 (2007) , “Compensating point defects in 4He+-irradiated InN”, F. Tuomisto, A. Pelli, K. M. Yu, W. Walukiewicz, and W. J. SchaffWe use positron annihilation spectroscopy to study 2 MeV 4He+-irradiated InN grown by molecular-beam epitaxy and GaN grown by metal-organic chemical-vapor deposition. In GaN, the Ga vacancies act as important compensating centers in the irradiated material, introduced at a... (Read more)
- 2. Appl. Phys. Lett. 89, 031912 (2006) , “Formation of nanovoids in high-dose hydrogen implanted GaN”, I. Radu, R. Singh, R. Scholz, U. Gösele, S. Christiansen, G. Brüderl, C. Eichler, and V. HärleThe formation of nanovoids upon high-dose hydrogen implantation and subsequent annealing in GaN is investigated by transmission electron microscopy. The epitaxial GaN layers on sapphire were implanted at room temperature with H2+ ions at 100 keV with a dose of... (Read more)
- 3. J. Appl. Phys. 100, 053516 (2006) , “Damage production in GaAs and GaAsN induced by light and heavy ions”, C. Björkas, K. Nordlund, K. Arstila, J. Keinonen, V. D. S. Dhaka, and M. PessaIon irradiation causes damage in semiconductor crystal structures and affects charge carrier dynamics. We have studied the damage production by high-energy (100 keV10 MeV) H, He, Ne, and Ni ions in GaAs and GaAs90N10 using molecular dynamics computer simulations. We... (Read more)
- 4. J. Appl. Phys. 100, 043513 (2006) , “Measurement of temperature-dependent defect diffusion in proton-irradiated GaN(Mg, H)”, R. M. Fleming and S. M. MyersDeuterated p-type GaN(Mg,2H) films were irradiated at room temperature with 1 MeV protons to create native point defects with a concentration approximately equal to the Mg doping (5×1019 cm3). The samples were then annealed isothermally at a... (Read more)
- 5. J. Appl. Phys. 100, 023531 (2006) , “Lattice site location and annealing behavior of implanted Ca and Sr in GaN”, B. De Vries, A. Vantomme, U. Wahl, J. G. Correia, J. P. Araújo, W. Lojkowski, and D. KolesnikovWe report on the lattice location of ion-implanted Ca and Sr in thin films of single-crystalline wurtzite GaN. Using the emission channeling technique the angular distributions of particles emitted by the radioactive isotopes 45Ca (t1/2=163.8 d) and... (Read more)
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Updated at 2010-07-20 16:50:39
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