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  • 71.55.Eq  (1)
  • Chemistry  (1)
  • PACS: 61.70.-r; 72.80.Ey; 71.55.Eq  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Electrical activity and precipitation behavior of copper in gallium arsenide (1995)
    Springer
    Applied physics 61 (1995), S. 7-16 
    Details
    ISSN: 1432-0630
    Keywords: 61.70.-r ; 72.80.Ey ; 71.55.Eq
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The electrical properties and preferred lattice site of Cu in GaAs were investigated combining electrical and optical measurements with ion beam and structural analysis. From this comprehensive study it was determined that Cu introduces two levels in the band gap, that the concentration of electrically active centers introduced by Cu diffusion is considerably smaller than the total Cu concentration, that this ratio of electrically active to total Cu concentration depends strongly on the cooling speed after diffusion, and that the portion of Cu that remains electrically inactive forms Cu-Ga precipitates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01538203
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Electrical activity and precipitation behavior of copper in gallium arsenide (1995)
    Springer
    Applied physics 61 (1995), S. 7-16 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 61.70.-r; 72.80.Ey; 71.55.Eq
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract.  The electrical properties and preferred lattice site of Cu in GaAs were investigated combining electrical and optical measurements with ion beam and structural analysis. From this comprehensive study it was determined that Cu introduces two levels in the band gap, that the concentration of electrically active centers introduced by Cu diffusion is considerably smaller than the total Cu concentration, that this ratio of electrically active to total Cu concentration depends strongly on the cooling speed after diffusion, and that the portion of Cu that remains electrically inactive forms Cu–Ga precipitates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01538203
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Self-generated oscillations in continuous crystallizers: Part I. Analytical prediction of the oscillating output (1975)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 21 (1975), S. 917-924 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The theory of nonlinear oscillations should provide a useful tool for studying both forced and self-generated oscillations in continuous crystallizers. The application of the theory is described in this paper for the case of self-generated oscillations in a MSMPR (mixed-suspension, mixed product removal) isothermal crystallizer. Although the process parameters do not correspond to typical industrial conditions, the results indicate that for the Class I system studied higher yields sometimes can be obtained from the periodic process than the steady state design. Thus, there may be some situations where oscillatory operation is advantageous.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690210513
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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