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  • 1975-1979  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Further studies on the dielectric behaviour of cadmium iodide polytypes (1977)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 10 (1977), S. 32-36 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: The dielectric constants (εr) of several cadmium iodide polytypes have been measured and found to be higher than that of the parent 4H structure. The dielectric constants for several long-period polytypes have been found to lie between 60 and 190 whereas the 4H parent structure has a value in the range of about 15 to 30. In particular, both increasing polytype periodicity and increasing disorder increase the dielectric constant, e.g. from 16 for an ordered 4H structure to 114 for a 32H structure and 67 for a highly disordered 4H structure. In the absence of disorder a particular polytype has its own characteristic dielectric constant value, e.g. the two 14H polytypes which have a common εr value of 63.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S002188987701276X
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    On the dielectric behaviour of cadmium iodide polytypes (1975)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 8 (1975), S. 645-648 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: The dielectric constants (εr) of cadmium iodide polytypes have been measured and found to be higher than that of the parent 4H structure. For example, whereas the εr for polytypic structures 32H and 34H is between 120 and 150, for the 4H structure it is between 20 and 25. A possible explanation for this decrease is suggested in terms of the occurrence of the stacking faults and their effect on the orientation polarizability of the cadmium iodide crystals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889875011533
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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