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  • Electronic Resource  (3)
  • 1990-1994  (3)
  • 1990  (3)
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  • Electronic Resource  (3)
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  • 1990-1994  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 57 (1990), S. 822-824 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The structural characteristics of YBa2Cu3O7 (YBCO) thin films were investigated by x-ray diffractometry. Films with good preferred orientation (001) and high Tc0 (86–90 K) can be prepared in situ using the dc magnetron sputtering method. For the films prepared on the ZrO2 (stabilized with Y2O3) substrate at a substrate temperature (Ts) less than 700 °C, there are different orientations and the degree of random orientation will decrease with increasing Ts. YBCO films with (001) can be obtained on ZrO2 with different crystal planes, such as (100), (110), and (111) at suitable temperature (760–850 °C). From the results it could be concluded that the YBCO film growth with c-axis orientation mainly depends on the substrate temperature Ts.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 79 (1990), S. 177-179 
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An experimental method is proposed for measuring the refractive indices of anisotropic crystals. The results of the first measurements are in good agreement with those of other methods.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Chromatographia 30 (1990), S. 211-214 
    ISSN: 1612-1112
    Keywords: Gas chromatography ; Determination of adduction contant ; Enthalpies and entropies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The adduction constants for the following eight binary systems were measured by gas liquid chromatography, at different temperatures: tetrachloromethane/p-xylene, tetrachloromethane/pseudocumene, chloroform/p-xylene, chloroform/pseudocumene, chloroform/aniline, m-methylphenol/aniline, o-methylphenol/aniline, and o-chlorophenol/aniline. The relationships between the adduction constant and temperature were used to fit the enthalpies and entropies of adduct formation.
    Type of Medium: Electronic Resource
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