Physical Review Letters · 1969 · 1.6K citations · 9 references
Natural SciencesPhysicsCondensed Matter PhysicsMagnetic MaterialsCritical PhenomenaFerromagnetic MaterialsFerromagnetismMagnetization ProcessesPhase TransitionsCritical BehaviorCritical Point BehaviorFinite-temperature MagnetismIsing ModelMagnetic Critical BehaviorMagnetic Phase TransitionsRandom Magnetic SystemsSpontaneous Magnetization
It is shown that in a class of randomly diluted Ising ferromagnets the magnetization fails to be an analytic function of the field $H$ at $H=0$ for a range of temperatures above that at which spontaneous magnetization first appears.
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