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- 1. Phys. Rev. B 75, 193409 (2007) , “Magnetic properties of vacancies in a graphitic boron nitride sheet by first-principles pseudopotential calculations”, M. S. Si and D. S. XueWe use ab initio methods to calculate the magnetic properties of vacancies in a graphitic boron nitride sheet (g-BN). By applying a full spin-polarized description to the system, we demonstrate that the nitrogen vacancy (VN) or the boron vacancy (VB)... (Read more)
- 2. Phys. Rev. B 75, 085416 (2007) , “Ab initio theoretical study of hydrogen and its interaction with boron acceptors and nitrogen donors in single-wall silicon carbide nanotubes”, A. GaliSilicon carbide nanotubes have a great potential for biological applications. It is of interest to explore the electronic properties of these nanotubes, and how those are modified in the presence of impurities. Hydrogen is a common impurity that can appear during the growth of silicon carbide... (Read more)
- 3. Phys. Rev. B 75, 075202 (2007) , “Theoretical study of Li and Na as n-type dopants for diamond”, J. P. Goss and P. R. BriddonPhosphorus is the n-type dopant of choice for diamond, but results in a deep donor level and alternatives are being sought. One possibility is the incorporation of interstitial alkali metal impurities such as Li and Na. We present the results of density-functional calculations used to predict... (Read more)
- 4. Phys. Rev. B 75, 035211 (2007) , “Self- and foreign-atom diffusion in semiconductor isotope heterostructures. II. Experimental results for silicon”, H. Bracht, H. H. Silvestri, I. D. Sharp, and E. E. HallerWe report the diffusion of boron, arsenic, and phosphorus in silicon isotope multilayer structures at temperatures between 850 °C and 1100 °C. The diffusion of all dopants and self-atoms at a given temperature is modeled with the same setting of all native-point-defect-related parameters.... (Read more)
- 5. Phys. Rev. B 75, 033301 (2007) , “Microscopic evidence for evolution of superconductivity by effective carrier doping in boron-doped diamond: 11B-NMR study”, H. Mukuda, T. Tsuchida, A. Harada, Y. Kitaoka, T. Takenouchi, Y. Takano, M. Nagao, I. Sakaguchi, T. Oguchi, and H. KawaradaWe have investigated the superconductivity discovered in boron-doped diamonds by means of 11B-NMR on heteroepitaxially grown (111) and (100) films. 11B-NMR spectra for all of the films are identified to arise from the substitutional B(1) site as single occupation and lower... (Read more)
- 6. Phys. Rev. Lett. 98, 096805 (2007) , “Observation of the Linear Stark Effect in a Single Acceptor in Si”, L. E. Calvet, R. G. Wheeler, and M. A. ReedThe Stark splitting of a single fourfold degenerate impurity located within the built-in potential of a metal-semiconductor contact is investigated using low temperature transport measurements. A model is developed and used to analyze transport as a function of temperature, bias voltage, and... (Read more)
- 7. Phys. Rev. Lett. 98, 015501 (2007) , “First-Principles Simulations of Boron Diffusion in Graphite”, I. Suarez-Martinez, A. A. El-Barbary, G. Savini, and M. I. HeggieBoron strongly modifies electronic and diffusion properties of graphite. We report the first ab initio study of boron interaction with the point defects in graphite, which includes structures, thermodynamics, and diffusion. A number of possible diffusion mechanisms of boron in graphite are... (Read more)
- 8. Appl. Phys. Lett. 89, 232112 (2006) , “Determination at 300 K of the hole capture cross section of chromium-boron pairs in p-type silicon”, S. Dubois, O. Palais, and P. J. RibeyronMeasurement of dissolved chromium concentration in p-type crystalline silicon by means of the change in carrier lifetime due to chromium-boron pair dissociation requires precise knowledge of the recombination parameters of dissolved chromium in silicon. This work, based on quasi-steady-state... (Read more)
- 9. Appl. Phys. Lett. 89, 232111 (2006) , “Electron-beam-induced dissociation of B–D complexes in diamond”, J. Barjon, J. Chevallier, F. Jomard, C. Baron, and A. DeneuvilleThe diffusion of deuterium in boron-doped homoepitaxial diamond films leads to the passivation of boron acceptors via the formation of B–D complexes. In this letter, the stability of B–D pairs is investigated under the stress of a low-energy (10 keV) electron-beam irradiation at low... (Read more)
- 10. Appl. Phys. Lett. 88, 021901 (2006) , “H-induced platelet and crack formation in hydrogenated epitaxial Si/Si0.98B0.02/Si structures”, L. Shao, Y. Lin, J. G. Swadener, J. K. Lee, Q. X. Jia, Y. Q. Wang, M. Nastasi, P. E. Thompson, N. D. Theodore, T. L. Alford, J. W. Mayer, P. Chen, S. S. LauAn approach to transfer a high-quality Si layer for the fabrication of silicon-on-insulator wafers has been proposed based on the investigation of platelet and crack formation in hydrogenated epitaxial Si/Si0.98B0.02/Si structures grown by molecular-beam epitaxy. H-related... (Read more)
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