Dear Hans,
Sorry for my words.
T1 is the data point from the experiment. It is thetaH vs H. I can say we measure the ferromagnetic resonance at different angle from 0 deg to 180 deg. For every angle, there is resonance field H for Co. Here we measure 10nm of Co thin film. So, T1 is the experimental data. However, I changed degree to radian.
****You have equations eq1a and eq3a. They depend on theta, H and thetaH. For a given thetaH (in the procedure called thetaH1) you can find for some given Ku and K4 theta and H (This is done in fH1rez - see the attached notebook). If you change Ku and / or K4 these values change as well.
Ans-Yes. They depend on theta, H and thetaH.
However, I trying to fit with T1 data points to evaluate Ku and K4.
It is the Points { thetaH, H } .
For your reference, I attached a paper here. Please see figure-3.
Thanks,
Best Regards,
Sukanta
Attachments: