Journal of Applied Physics · 1962 · 15 citations · 5 references
Natural SciencesChemistryPhysicsPhysical ChemistrySpectroscopic AnalysisSpectroscopyAntiferromagnetismElectron Paramagnetic ResonanceExchange InteractionsMagnetic Properties Of SolidsMagnetic SusceptibilitySpin DynamicsAntiferromagnetic CouplingAntiferromagnetic ExchangeCurie-weiss LawExchange CouplingOrganic Radical Spectroscopy
Studies of EPR intensity and linewidth in four free radicals at temperatures between 300° and 1.5°K have shown the presence of antiferromagnetic exchange coupling. In two cases a low-temperature paramagnetism occurs following a Curie-Weiss law with positive Weiss constant. A model involving isolated spins in a magnetically dilute system is proposed to explain these results.
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