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- 1. Phys. Rev. B 45, 1645 (1992) , “Electron-paramagnetic-resonance observation of gallium vacancy in electron-irradiated p-type GaAs”, Y. Q. Jia, H. J. von Bardeleben, D. Stievenard, C. DelerueWe report an observation by electron paramagnetic resonance (EPR) of the gallium vacancy defect in GaAs. The defect is observed after electron irradiation of p-type GaAs. The gallium vacancy defect shows trigonal symmetry; its spin-Hamiltonian parameters are determined as S=1/2,... (Read more)
- 2. Phys. Rev. B 74, 205207 (2006) , “Charge-dependent migration pathways for the Ga vacancy in GaAs”, Fedwa El-Mellouhi, Norm, and MousseauUsing a combination of the local-basis ab initio program SIESTA and the activation-relaxation technique we study the diffusion mechanisms of the gallium vacancy in GaAs. Vacancies are found to diffuse to the second neighbor using two different mechanisms, as well as to the first and fourth... (Read more)
- 3. J. Appl. Phys. 100, 083521 (2006) , “Thermally activated charge reversibility of gallium vacancies in GaAs”, Fedwa El-Mellouhi, Norm, and MousseauThe dominant charge state for the Ga vacancy in GaAs has been the subject of a long debate, with experiments suggesting −1, −2, or −3 as the best answer. We revisit this problem using ab initio calculations to compute the effects of temperature on the Gibbs free energy of... (Read more)
- 4. 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)
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Updated at 2010-07-20 16:50:39
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Materials
(111 tags)
Others(101 tags)
Technique
(46 tags)
Details
(591 tags)
Bond(35 tags)
Defect(interstitial)(18 tags)
Defect(vacancy)(15 tags)
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Element(65 tags)
Energy(8 tags)
Isotope(56 tags)
Label(303 tags)
Sample(17 tags)
Spin(8 tags)
Symmetry(15 tags)