Effective Mass of Electron in Polyethylene

learner@123
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Hello friends
Can anyone tell me the effective mass of electron in polyethylene and how it depends on the crystalline nature of polymer.
 
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learner@123 said:
how it depends on the crystalline nature of polymer.
To say not exactly: effective mass describes the effects of all the internal forces exerted on an electron in a crystal.
 
hokhani said:
To say not exactly: effective mass describes the effects of all the internal forces exerted on an electron in a crystal.
Is there any average value defined for polyethylene .
 
I didn't know that in polyethylene you have mobile charge carriers at all. It is a very good insulator.
 
DrDu said:
I didn't know that in polyethylene you have mobile charge carriers at all. It is a very good insulator.
That's true ,but very small leakage current flows at high field ratings (KV/mm) .For that i want effective mass.
 
From the BCS theory of superconductivity is well known that the superfluid density smoothly decreases with increasing temperature. Annihilated superfluid carriers become normal and lose their momenta on lattice atoms. So if we induce a persistent supercurrent in a ring below Tc and after that slowly increase the temperature, we must observe a decrease in the actual supercurrent, because the density of electron pairs and total supercurrent momentum decrease. However, this supercurrent...
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