Anisotropic exchange interactions in hetero-one-dimensional Ln3+-M3+ systems (Ln3+Â =Â Er, Yb; M3+Â =Â Cr, FeLS): Magnetometry and Dual Mode X-band Electron Paramagnetic Resonance spectroscopic studies

It was possible to define some trends concerning the exchange components of the [ErCr] chain according to which the antiferromagnetic isotropic exchange constant is smaller than 0.7(1) cm−1 and the anisotropic components are [Dexc, Eexc] = [−0.4(1), 0.0(1)] cm−1. Also for the case of [YbCr] and [YbFe] chains the antiferromagnetic isotropic exchange constant is smaller than 0.1(1) cm−1 and 0.25(1) cm−1, respectively while the anisotropic components are [Dexc, Eexc] = [−0.3(1), 0.0(1)] cm−1 and [Dexc, Eexc] = [−0.1(1), 0.0(1)] cm−1, respectively.