physica status solidi (b) · 1980 · 62 citations · 7 references
Natural SciencesPhysicsCondensed Matter PhysicsMagnetic MaterialsMathematical PhysicsFerromagnetic MaterialsFerromagnetismMagnetism In SolidsPercolation TheoryPhase TransitionsCritical ConcentrationEffective Coordination NumberInternal EnergyMagnetic Critical BehaviorMagnetic Specific HeatPercolation Effects In MagnetismSpecific Heat CapacitySpecific Internal Energy
Abstract A new‐type effective field theory with correlations in a diluted ferromagnet is discussed. The critical percolation concentration is obtained analytically. The transition temperatures are given as a universal function of effective number of nearest‐neighbours. The specific heat and internal energy are also obtained.
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A note on Green functions and the Ising model
Herbert B. Callen · Physics Letters · 1963 · 507 citations
The propagation of order in co-operative phenomena
F. Zernike · Physica · 1940 · 325 citations