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Some (undergraduate) text books like the "Atkins", "Barrett"
or "Askeland" show simplified pictures to orientation polarization that are simply wrong. |
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This figure reproduces roughly a picture from the (otherwise very good) "Askeland: The Science and
Engineering of Materials". In the bottom part it is supposed to show water molecules without (left ) and with (right)
an electrical field. |
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Well - it is simply wrong. However, considering that this book only spends two pages on polarization
mechanisms and dielectric constants, there simply is no room for the author to describe "details". |
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The same is true for the magnetic equivalent of orientation polarization: paramagnetism. |
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Here is a picture drawn after an illustration in the "Barrett" |
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It is just as wrong as the picture above. However, the same "excuse" applies: This
is Undergraduate stuff, much simplified, and without a discussion of the statistical nature of the orientation. |
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© H. Föll (Electronic Materials - Script)