Temperature shift of EPR line in exchange-coupled spin groups
Stryukov V.B., Fedotin D.N., Zvarykina A.V.
We investigated the temperature-dependent exchange shift of the EPR line in a complex compound of the coupled ion Cu(2) with two iminoxy radicals. The magnetic system of the complex consists of triads of exchange-coupled spin. At Τ > 30 °K, the position of the EPR line of the single crystal is determined by the average g factor g = (gcu + 2gR)/3, and at Γ=4.2°Κ it is determined by the g factor of the Cu(2) ions.