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hjq_seu
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I want to know if the orientational polarization should be included when you calculate the permittivity of the silicon oxide (both crystal and amorphous)?
Polar liquids have orientational polarization at frequencies that are not too high.hjq_seu said:In most solid there are three kinds of polarization that may contribute to the permittivity,viz Eletronic polarization,orientational polarization and Atomic ploraization.
Pieter Kuiper said:Polar liquids have orientational polarization at frequencies that are not too high.
That is why water has such a high relative dielectric constant (about 80).
But the static dielectric constant of ice is only 3.
Orientational polarization refers to the alignment of polar molecules in an electric field, resulting in an induced dipole moment and the creation of a net polarization in the material.
Silicon oxide, also known as silica, is a common dielectric material used in electronic devices. It has a relatively high permittivity, meaning it can store a large amount of electric charge per unit area when an electric field is applied.
Orientational polarization is one of the mechanisms that contribute to the overall permittivity of a material. The extent of orientational polarization depends on the polarizability of the molecules and the strength of the applied electric field.
As temperature increases, the thermal energy of molecules also increases, making them less susceptible to orientational polarization. Therefore, the degree of orientational polarization decreases with increasing temperature.
Yes, the permittivity of silicon oxide can be modified by changing its composition or structure. For example, by introducing impurities or using different deposition techniques, the permittivity of silicon oxide can be altered to suit specific applications.