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Showing 1 to 11 of 11 for “"substitutional impurities"”.
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Phonon scattering from monovalent substitutional impurities in sodium chloride
… investigate phonon scattering fl;'om monovalent substitutional impurities in sodium chloride using thefmal conductivity measurements as a tool. Similar work by other investi~ators on other alkali halides has shown that these defects scatter more strongly than the present theories allow. The eight …
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Phonon Scattering From Substitutional Impurities and Lattice Defects in Silver-Chloride
Made available in DSpace on 2015-05-12T21:41:49Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6910658.PDF: 3384587 bytes, checksum: dadaf091abb753ede9fb3bf70e7363a2 (MD5) Previous issue date: 1968
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Phonon Scattering From Substitutional Impurities and Lattice Defects in Cadmium-Sulfide
Made available in DSpace on 2015-05-12T21:41:50Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6910799.PDF: 2471982 bytes, checksum: d9938384dcc01ec6e7c50c7698e0ae7c (MD5) Previous issue date: 1968
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Phonon scattering from substitutional impurities and lattice defects in cadmium sulfide
… phonon scattering rates. Isoe1ectronic, substitutional impurities (Co, Mn, Ni, Se, and Zn) were introduced in the melt in concentrations up to 500 ppm. A Debye fit, using only enhanced point defect scattering, to the thermal conductivity data for the doped crystals works well except at …
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Phonon scattering from substitutional impurities and lattice defects in silver chloride
… investigation was to study phonon scattering by substitutional impurities and lattice defects in silver chloride crystals by means of the thermal conductivity technique. In addition, far infrared absorption measurements were made on some of the doped crystals. The thermal conductivity of silver …
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Implementation of Kunz-Klein localization in icecap and an application to the problem of off-center isovalent substitutional impurities in alkali halides
Theoretical models of off-center isovalent substitutional impurities in alkali halides are examined. Calculations have been performed on r,j+ in KCI, a representative system known experimentally to exhibit off-center behavior. The potential seen by the Li+ ion in the lattice has been calculated …
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Diffusion and the thermal stability of amorphous copper-zirconium
… range from 317 to 385 C, using Ag and Au as substitutional impurities, by means of Auger electron spectrometry (AES) and Rutherford backscattering spectrometry (RBS). Thermal measurements were made by differential scanning calorimetry (DSC) up to 550 C. The diffusion coefficients of Ag and Au …
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Topics in the theory of semiconductors: I. Novel semiconductors II. Uniaxial stress dependence of deep impurities
… with the uniaxial stress dependence of deep substitutional impurity levels in semiconductors. Chapter 1: The electronic energy band structure and deep substitutional impurity levels for metastable are predicted with a nearest-neighbor, tight-binding model. Gel_xS~ is a semiconductor-metal …
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Positron Annihilation lifetime studies of inorganic materials using a new positron beamline
… the result of self-irradiation from radioactive substitutional impurities such as uranium. Samples which had suffered a range of radiation doses were investigated and such voids were observed, though not universally. The second study focused on characterising zeolite sheets prepared using a …
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Positron Annihilation lifetime studies of inorganic materials using a new positron beamline
… the result of self-irradiation from radioactive substitutional impurities such as uranium. Samples which had suffered a range of radiation doses were investigated and such voids were observed, though not universally. The second study focused on characterising zeolite sheets prepared using a …
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A theoretical investigation in heterogeneous gold catalysis
… can be stabilized at the vacancy. As zinc-substitutional impurities on the bulk-terminated island site, Au+, Au2+ and Au3+ oxidation states can be stabilized. CO was used as a test molecule to probe the chemical reactivity of the gold atoms in different adsorption sites and oxidation …