dielectric polarization, \(P\)
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https://doi.org/10.1351/goldbook.D01698
The difference between the electric displacement vector and the product of the electric field strength with the permittivity of vacuum, P = D- ɛ 0 E.
Source:
Green Book, 2
nd
ed., p. 14 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)