Drude model- question 3.2

Hey, I do not see how σ_xy equals to -ρ_yx/…. Attached you will find how I did the inverse, but again I tried to see my mistake, however I could not find it. I would really appreciate it, if you could tell me where I went wrong.

Hi Victor,

Your result is good. To do the last step, remember that in our case \rho_{xy}=-\rho_{yx} and \rho_{xx}=\rho_{yy}. This was derived in 3D in the lecture notes, but you could derive it for 2D in a similar fashion, starting from the Drude equation of motion and solving for \mathbf{E}.

Hope this helps,
Filip

but then -rho_xy in my case would be equal to rho_yx and not -rho_yx

Ah I see what you mean. I think its a typo…

EDIT: Fixed.

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