Synthetic Diamond
نویسندگان
چکیده
منابع مشابه
The Composition Lines of the Visible Band of Synthetic Diamond
The visible band (band A) of Photoluminescence spectra of high-purity synthesized diamond is analyzed by deconvolution technique. A set of eight lines with distinct peak energy are found. The peak energy and the width of these lines were either constant or varies very slightly with temperature. The amplitude of the lines are significantly temperature. The closeness of the temperature that the a...
متن کاملA First Principles Study of Nickel Defects in Synthetic Diamond
Spin-polarised local density functional cluster calculations are carried out on iso-(S=1/2) lies at the T d site. Ni ? s (S=3/2) is shown to be stable and remains on-site in agreement with experimental results. Donor-acceptor complexes of Ni, namely Ni + i-B ? s , Ni ? s-N + s and Ni + s-B ? s are stable trigonal defects which have a number of gap levels. Optical transitions are expected betwee...
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Hadron cancer-therapy with high-energetic heavy-ions (HI) as available at the SIS facility at GSI Darmstadt [1] as well as the research with beams stopped in biological material as realized at the UNILAC at GSI in general require the precise knowledge of beam conditions and its composition as well as the applied dose within less than 1% in most cases. At these sites beam preparation, its applic...
متن کاملSecondary electron emission measurements on synthetic diamond films
During the electron irradiation of synthetic diamond films, three successive regimes are encountered as a function of the electron dose: (1) a reduction of the downward band bending of energy levels at the sample surface because an excess of secondary electrons leaves the sample; (2) the creation of an internal electric field in which secondary electrons drift to the surface, leading to an appr...
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Rhombellanes are mathematical structures existing in various environments, in crystal or quasicrystal networks, or even in their homeomorphs, further possible becoming real molecules. Rhombellanes originate in the K2.3 complete bipartite graph, a tile found in the linear polymeric staffanes. In close analogy, a rod-like polymer derived from hexahydroxy-cyclohexane was imagined. Further, the ide...
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ژورنال
عنوان ژورنال: Sen'i Gakkaishi
سال: 1988
ISSN: 0037-9875,1884-2259
DOI: 10.2115/fiber.44.11_p444