Kerr - July 19, 2016

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B field equation as a function of distance in mm from foil surface ---->

  • y = -1.186ln(x) + 3.9958
  • r^2 value of R² = 0.9831

media:Bfieldfunction.xlsx

Milestone moment

With the Lock-in Amplifier system and the two equations provided in the Hinds instrument MOKE manual I am able to observe a Kerr θ and ε on the Lock-in Amplifiers!!! --v


Although the fit is far from perfect, some setup optimization may help us observe a more clear signal
This quite smooth curve agrees with literature in that the ellipticity is more sensitive to change in magnetization of foil.


Powerpoint for ODU so far: ---> File:ODUpresentation.pptx

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