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- 1. Phys. Rev. B 75, 195207 (2007) , “Effects of optical absorption on 71Ga optically polarized NMR in semi-insulating GaAs: Measurements and simulations”, Stacy Mui, Kannan Ramaswamy, and Sophia E. HayesThe intensity and the hyperfine shift of optically polarized NMR (OPNMR) signals of 71Ga in semi-insulating GaAs have been found to depend on the photon energy and the helicity of light used for optical pumping. Single-crystal GaAs wafers of two different thicknesses, 400 and 175 ... (Read more)
- 2. Appl. Phys. Lett. 87, 252118 (2005) , “"EL2" revisited: Observation of metastable and stable energy levels of EL2 in semi-insulating GaAs”, D. Kabiraj, S. GhoshBy using a combination of detailed experimental studies, we identify the metastable and stable energy levels of EL2 in semi-insulating GaAs. These results are discussed in light of the recently proposed models for EL2 in GaAs. ©2005 American Institute of Physics ... (Read more)
- 3. J. Appl. Phys. 98, 083709 (2005) , American Institute of Physics , “Osmium impurity-related deep levels in n-type GaAs”, A. Majid, M. Zafar Iqbal, A. Dadgar and D. BimbergThe 5d transition-metal impurity, osmium, has been incorporated during the growth of n-type GaAs epitaxial layers using low-pressure metal-organic chemical-vapor deposition to characterize defect states associated with this heavy and, therefore, thermally stable dopant impurity.... (Read more)
- 4. Physica B 308-310, 753-756 (2001) , “On the problem of the EL2 structure in semi-insulating GaAs: high-frequency ODEPR/ODENDOR measurements in W-band”, I. Tkach, K. Krambrock and J. -M. SpaethFor almost two decades the structure model of the EL2 defect in semi-insulating (SI) GaAs has been controversially discussed. Neither the isolated AsGa with Td symmetry, nor the AsGa–Asi pair model nor any other AsGa-related defect model could be unambiguously established. The reason was that... (Read more)
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Updated at 2010-07-20 16:50:39
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