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- 1. Phys. Rev. B 69, 45208 (2004) , “Intrinsic defects in GaN. II. Electronically enhanced migration of interstitial Ga observed by optical detection of electron paramagnetic resonance”, P. Johannesen, A. Zakrzewski, L. S. Vlasenko, G. D. Watkins, Akira Usui, Haruo Sunakawa, Masashi MizutaOptical excitation at 1.7 K with 364-nm laser light produces partial annealing recovery of the damage produced in GaN by 2.5-MeV electron irradiation in situ at 4.2 K. Observed is a reduction in the irradiation-produced 0.95-eV photoluminescence (PL) band, recovery in the visible... (Read more)
- 2. Phys. Rev. B 69, 45207 (2004) , “Intrinsic defects in GaN. I. Ga sublattice defects observed by optical detection of electron paramagnetic resonance”, K. H. Chow, L. S. Vlasenko, P. Johannesen, C. Bozdog, G. D. Watkins, Akira Usui, Haruo Sunakawa, Chiaki Sasaoka, Masashi MizutaIrradiation of GaN by 2.5-MeV electrons in situ at 4.2 K produces a broad photoluminescence (PL) band centered at 0.95 eV. Optical detection of electron paramagnetic resonance (ODEPR) in the band reveals two very similar, but distinct, signals, L5 and L6, which we identify as interstitial... (Read more)
- 3. Phys. Rev. Lett. 85, 2761 (2000) , “Detection of Interstitial Ga in GaN”, K. H. Chow, G. D. Watkins, Akira Usui, M. MizutaWe report the direct detection of interstitial Ga by optical detection of electron paramagnetic resonance (ODEPR) in the photoluminescence of n-type GaN after irradiation in situ at 4.2 K with 2.5 MeV electrons. It is stable upon annealing until room temperature, where it becomes mobile and trapped... (Read more)
- 4. Phys. Rev. B 42, 5765 (1990) , “Bistable interstitial-carbonsubstitutional-carbon pair in silicon”, L. W. Song, X. D. Zhan, B. W. Benson, and G. D. WatkinsA bistable interstitial-carbon–substitutional-carbon pair has been identified in electron-irradiated silicon by a combination of several spectroscopic experimental techniques. In the positive and negative charge states, the stable configuration of the defect involves a carbon-silicon ‘‘molecule’’... (Read more)
- 5. Phys. Rev. Lett. 60, 460 (1988) , “Bistable Defect in Silicon: The Interstitial-Carbon-Substitutional-Carbon Pair”, L. W. Song, X. D. Zhan, B. W. Benson, G. D. Watkins.By combining several spectroscopic techniques, we have observed a new type of bistable center in electron-irradiated silicon and have identified it as an interstitial-carbon–substitutional-carbon pair. The positive and negative charge states of the defect share a common stable configuration which... (Read more)
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Updated at 2010-07-20 16:50:39
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Materials
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Bond(35 tags)
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