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  • 1995-1999  (2)
  • 1997  (2)
  • 1
    Electronic Resource
    Electronic Resource
    More progressive technology of GaSb single crystal growth (1997)
    Springer
    Czechoslovak journal of physics 47 (1997), S. 693-697 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract GaSb single crystals were grown by the Czochralski method without encapsulant in an atmosphere of ionized hydrogen. It has been found that the resistivity increased by more than one order of magnitude (0.8–1.0 Ω cm) and free carrier concentration decreased to the value of (1–2) × 1016 cm−3 in comparison with the crystals grown under molecular hydrogen atmosphere. A certain asymmetry in acceptor and donor passivation is assumed because the Hall concentration does not vary along the direction of crystal growth. Donors are passivated more than acceptors, which should be confirmed by increasing resistivity and decreasing mobility.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1021278500190
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Some thermodynamic aspects of highT c superconductors (1997)
    Springer
    Journal of thermal analysis and calorimetry 48 (1997), S. 1105-1122 
    Details
    ISSN: 1572-8943
    Keywords: data simulation ; enthalpy ; non-stoichiometry ; oxide superconductors ; phase diagrams ; thermodynamics ; Y-Ba-Cu-O and Bi-Sr-Cu-O systems
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Thermochemical and thermodynamical properties of HTSC phases are reviewed for the Y-Ba-Cu-O system and also presented for the newly calculated Bi-Sr-Cu-O system stressing out stoichiometric and phenomenological viewpoints. Simulated data are listed for (H 298 o -H o o , phase transformation temperatures, standard entropies, standard enthalpies of formation, heat capacities in crystalline phase, etc. Pseudobinary phase diagrams are treated showing the effect of oxygen partial pressure particularly illustrated on the (Sr, Bi, Ba)-Cu-O system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01979157
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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