Plotting of Magnetic current on the surface of a dielectric in HFSS

Hi All,

I have tried plotting the magnetic current on the surface of a dielectric using the formula M = -nxE in HFSS. But I am not quite sure about the authenticity of the result because using a similar formula to calculate the electric current on the surface of a conductor doesn't quite give the same results as the Jsurf option in Field Overlays.

Any sort of comments would be very helpful.

Thanks