Joel David - Academia.edu (original) (raw)
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Papers by Joel David
Annals of Pure and Applied Logic, 2000
Physical Review Letters, 1993
We use the zero-temperature random-field Ising model to study hysteretic behavior at first-order ... more We use the zero-temperature random-field Ising model to study hysteretic behavior at first-order phase transitions. Sweeping the external field through zero, the model exhibits hysteresis, the return-point memory effect, and avalanche fluctuations. There is a critical value of disorder at which a jump in the magnetization (corresponding to an infinite avalanche) first occurs. We study the universal behavior at this critical point using mean-field theory, and also present preliminary results of numerical simulations in three dimensions.
Annals of Pure and Applied Logic, 2000
Physical Review Letters, 1993
We use the zero-temperature random-field Ising model to study hysteretic behavior at first-order ... more We use the zero-temperature random-field Ising model to study hysteretic behavior at first-order phase transitions. Sweeping the external field through zero, the model exhibits hysteresis, the return-point memory effect, and avalanche fluctuations. There is a critical value of disorder at which a jump in the magnetization (corresponding to an infinite avalanche) first occurs. We study the universal behavior at this critical point using mean-field theory, and also present preliminary results of numerical simulations in three dimensions.