Anisotropic exchange interactions in [Ln3+-FeLS3+] dinuclear systems (Ln3+Â =Â Dy, Tm, Yb): Magnetometry and Dual Mode X-band Electron Paramagnetic Resonance spectroscopic study

It was possible to define some trends concerning the exchange components of the [DyFe] dimer according to which the antiferromagnetic isotropic exchange constant is smaller than 4 cm−1 and the anisotropic components are [Dexc, Eexc] = [⩾6(1), 0.0] cm−1. Also for the case of [TmFe] and [YbFe] dimers the antiferromagnetic isotropic exchange constant is smaller than 0.3 cm−1 while the anisotropic components are [Dexc, Eexc] = [⩾12.0, 0.0] cm−1 and [Dexc, Eexc] = [0.4(1), 0.0] cm−1, respectively.