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- 1. J. Appl. Phys. 102, 013530 (2007) , “Fluorine-vacancy complexes in Si-SiGe-Si structures”, D. A. Abdulmalik, P. G. Coleman, H. A. W. El Mubarek, and P. AshburnFluorine-vacancy (FV) complexes have been directly observed in the Si0.94Ge0.06 layer in a Si-SiGe-Si structure, using variable-energy positron annihilation spectroscopy (VEPAS). These complexes are linked to the significant reduction of boron diffusion in the SiGe layer via... (Read more)
- 2. Phys. Rev. B 75, 144103 (2007) , “Multiscale modeling of point defects in Si-Ge(001) quantum wells”, B. Yang and V. K. TewaryA computationally efficient hybrid Green's function (GF) technique is developed for multiscale modeling of point defects in a trilayer lattice system that links seamlessly the length scales from lattice (subnanometers) to continuum (bulk). The model accounts for the discrete structure of the lattice... (Read more)
- 3. Phys. Rev. B 75, 075316 (2007) , “Theoretical investigation of a Mn-doped Si/Ge heterostructure”, J. T. Arantes, Antônio J. R. da Silva, A. Fazzio, and A. AntonelliWe investigate, through ab initio density-functional theory calculations, the electronic and structural properties of neutral Mn impurities at tetrahedral interstitial and substitutional sites in both Si and Ge layers of a Si/Ge heterostructure. We conclude that substitutional Mn at the Ge... (Read more)
- 4. Appl. Phys. Lett. 89, 231906 (2006) , “Threading dislocation reduction by SiGeC domains in SiGe/SiGeC heterostructure: Role of pure edge dislocations”, L. H. Wong, C. Ferraris, C. C. Wong, and J. P. LiuThe authors previously reported an unusual phenomenon of strain relaxation accompanied by a reduction in threading dislocation density (TDD) on a Si0.77Ge0.23 layer grown on top of alternating layers of... (Read more)
- 5. Appl. Phys. Lett. 89, 041916 (2006) , “Photoluminescence evaluation of defects generated during SiGe-on-insulator virtual substrate fabrication: Temperature ramping process”, Dong Wang, Seiichiro Ii, Hiroshi Nakashima, Ken-ichi Ikeda, Hideharu Nakashima, Koji Matsumoto, and Masahiko NakamaeCrystal qualities of Si/SiGe/Si-on-insulator structures with different SiGe thicknesses were evaluated by photoluminescence (PL). The wafers were annealed at different temperatures with a ramping rate of 5 °C/min. Free exciton PL peaks were clearly observed for the as-grown wafers and decreased... (Read more)
- 6. J. Appl. Phys. 100, 073511 (2006) , “Depth profiling of strain and defects in Si/Si1–xGex/Si heterostructures by micro-Raman imaging”, T. Mitani, S. Nakashima, H. Okumura, and A. OguraWe have reported depth and in-plane profiling of strain, Ge composition, and defects in strained-Si/Si1xGex/Si heterostructures using micro-Raman imaging. Raman profiling in the depth direction was carried out with a depth resolution of ~15 nm using a... (Read more)
- 7. J. Appl. Phys. 99, 113531 (2006) , “High spatial resolution mapping of partially strain-compensated SiGe:C films in the presence of postannealed defects”, A. V. Darahanau, A. Benci, A. Y. Nikulin, J. Etheridge, J. Hester, and P. ZaumseilAn experimental-analytical technique for the model-independent nondestructive characterization of single-crystal alloys is applied to partially strain-compensated SiGe:C/Si single layer structures with high concentrations of Ge. The studies were performed on pre- and postannealed SiGe:C/Si samples.... (Read more)
- 8. Phys. Rev. Lett. 97, 066602 (2006) , “Electrically Detected Electron Spin Resonance in a High-Mobility Silicon Quantum Well”, Junya Matsunami, Mitsuaki Ooya, and Tohru OkamotoThe resistivity change due to electron spin resonance (ESR) absorption is investigated in a high-mobility two-dimensional electron system formed in a Si/SiGe heterostructure. Results for a specific Landau level configuration demonstrate that the primary cause of the ESR signal is a reduction of the... (Read more)
- 9. Phys. Rev. B 59, 13242 (1999) , “Electrically detected magnetic resonance of two-dimensional electron gases in Si/SiGe heterostructures ”, C. F. O. Graeff, M. S. Brandt, M. Stutzmann, M. Holzmann, G. Abstreiter, F. SchfflerStrained Si/Si0.75Ge0.25 heterostructures, grown by solid source e-beam evaporation molecular-beam epitaxy on Si(100) substrates, have been studied by electrically detected magnetic resonance. Samples with a low-temperature mobility of about 105 cm2/V s... (Read more)
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Updated at 2010-07-20 16:50:39
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