513.001 Molecular and Solid State Physics | |
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PyroelectricityPyroelectricity describes how the electric polarization changes as the temperature changes. The pyroelectric coefficients form a rank 1 tensor πi. dPi/dT = πi The generating matrix of the point group m is, . (a) Give the independent tensor elements for this point group. (b) How could the pyroelectric coefficient be calculated from the microscopic quantum states of the crystal? |