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Look at a grain boundary in a simple ionic crystal. Take two grains, for example, that are only rotated with respect to each other and are joined along some grain boundary as shown below | ||||
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Construct a grain boundary by filling in material | ||||
| Show that in most cases the boundary will be charged and contain dipoles | |||||
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Link to the solution | |||||
3.2.1 Mechanisms of Polarization
© H. Föll (Electronic Materials - Script)