Is sheet resistance measured quantity for 2D conductor? how to calculate mobility for VdP geometry, will there be geometrical factor correction between sheet resistance and sheet resistivity or both equals.
Hello, sheet resistance, also known as surface resistance or surface resistivity is a common electrical property used to characterize thin films of conducting and semiconducting materials. It is a measure of the lateral resistance through a thin square of material, i.e. the resistance between opposite sides of a square. The key advantage of sheet resistance over other resistance measurements is that it is independent of the size of the square - enabling easy comparison between different samples. Another advantage is that it can be measured directly using a four-point probe.
Sheet resistance (RS) is commonly defined as the resistivity (ρ) of a material divided by its thickness (t):
RS = p/t
See info below for more details
Good luck!
https://www.ossila.com/pages/sheet-resistance-theory
@Karen A. Darbinyan, Thanks for your valuable discussion. I am working on 2DEG system where there is no conductivity in 3rd dimension.So there will be no meaning of thickness..In some literature mobility is calculated using sheet resistance and in others sheet resistivity...so I want to know the which is correct or both are correct if both quantitiesare same
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