Spin Dimer Analysis for Antiferromagnetic Spin Exchange Interactions of Magnetic Solids with Several Unpaired Electrons per Spin Site: Trends in the Spin Exchange Parameters of the Compounds Consisting of MnF5 Chains and CrX2 (X=O, S) Layers

Abstract

For magnetic solids with several unpaired spins per spin site, the average spin orbital interaction energies 〈Δe〉 and the average spin orbital interaction energy squares 〈(Δe)2〉 were defined as a qualitative measure for the strengths of their antiferromagnetic spin exchange interactions. The trends in the antiferromagnetic spin exchange interactions of the magnetic solids containing MnF5 chains and CrX2 (X=O, S) layers were examined in terms of the 〈Δe〉 and 〈(Δe)2〉 values calculated for their spin dimers.