ADDITIONAL TERMS OF SPIN HAMILTONIAN

[Georgia]

Hello,
For the simulation of the cw EPR spectra, the easyspin is using the Spin Hamiltonian, which has the form H’ =bBgS+D[Sz^2-S(S+1)]+E(Sx^2-Sy^2)

I would like to simulate a cw EPR spectrum by using a more complicated Spin-Hamiltonian with additional terms. Particularly it has the form: H=H'+(a/6)[S2^4-(1/5)S(S+1)(3S^2+3S-1)]+(F/180)[35S^2-30S(S+1)Sz^2-30S(S+1)Sz+25Sz^2-6S(S+1)+3S^2(S+1)^2]


How could I do it?


Thank you in Advance
Georgia

[Stefan Stoll]

See here in the documentation.