Inner-sphere: Solomon-Bloembergen-Morgan model

• In fitteia use: R1ISsbm(f, q, C, ms, rho, S, tm, tR, tv, r, Delta2, Aohbar)

Outer-sphere: Ayant, Belorizky, Hwang, and Freed model

• In fitteia use: R1OSabhf(f, C, S, a, D, tv, Delta2)

Magnetic Nanoparticles

• From D. Kruk et al. "1H relaxation enhancement induced by nanoparticles in solutions: influence of magnetic properties and diffusion", The Journal of Chemical Physics 150, 184306 (2019), https://doi.org/10.1063/1.5082177, in fitteia use:

R1=mnpR1HSc(f, T, gH, gS, C, S, d, D, NP)\+mnpR1Hszn(f, T, gH, gS, C, S, d, D, T1e, NP)\+ mnpR1Hsze(f, T, gH, gS, C, S, d, D, T2e, NP)

Example for MnCl2