Journal of Physics Condensed Matter · 1989 · 43 citations · 3 references
Quantum Lattice SystemEngineeringCritical PhenomenonPhysicsNatural SciencesCondensed Matter PhysicsQuantum Field TheoryDisordered Quantum SystemLattice Field TheoryProbability TheoryDelta I- DeltaMean-field TheoryMathematical Statistical PhysicRandom Crystal FieldDelta ISpin-1 Ising ModelStatistical Field Theory
A spin-1 Ising model with a random crystal field Delta i has been studied within the mean-field approximation. For the particular two-valued distribution P( Delta i)=1/2( Delta ( Delta i- Delta (1+ alpha ))+ delta ( Delta i- Delta (1- alpha '))), depending upon the value of alpha , three types of diagram have been found in the ( Delta ,T) plane.
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