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- 1. Phys. Rev. B 74, 100201(R) (2006) , “Direct spectroscopic observation of the atomic-scale mechanisms of clustering and homogenization of rare-earth dopant ions in vitreous silica”, Sabyasachi Sen, Rafail Rakhmatullin, Ruslan Gubaidullin, and Andreas PöpplStructural aspects of clustering of rare earth ions in oxide glasses have been studied for the last several years in relation to their applications in photonics. However, the mechanism of homogenization of the spatial distribution of rare earth ions by codoping, typically with Al or P, is still not... (Read more)
- 2. phys. stat. sol. (a) 162, 95-151 (1997) , “EPR and ENDOR Investigations of Shallow Impurities in SiC Polytypes”, S. Greulich-WeberInvestigations of nitrogen donors in 6H-, 4H- and 3C-SiC using conventional electron paramagnetic resonance (EPR), electron nuclear double resonance (ENDOR) and optical detection of EPR and ENDOR as well as optical absorption and emission spectroscopy are reviewed and critically discussed. An... (Read more)
- 3. Mater. Res. Soc. Symp. Proc. 46, 227 (1985) , “Defect Identification in Silicon Using Electron Nuclear Double Redonance”, C. A. J. Ammerlaan, M. Sprenger, R. van Kemp, D. A. van Wezep.The application of electron nuclear double resonance (ENDOR) for identification and characterization of point defects in silicon is reviewed. Taking the vacancy and the boron-vacancy complex as examples it is discussed how ENDOR can provide information on the atomic and electronic structure of paramagnetic centers.
- 4. J. Non-Cryst. Solids 32, 313-326 (1979) , “OXYGEN-ASSOCIATED TRAPPED-HOLE CENTERS IN HIGH-PURITY FUSED SILICAS”, M. Stapelbroek, D. L. Griscom, E. J. Friebele and G. H. Sigel, Jr.Two distinct oxygen-associated trapped-hole centers (OHCs) are identified in samples of room-temperature γ-irradiated, high-purity fused silica. One, which we label the "wet" OHC, predominates in the high-OH-content (wet) silicas while the other, the "dry" OHC, is more... (Read more)
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Updated at 2010-07-20 16:50:39
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