Groupe de Physique Statistique

Equipe 106, Institut Jean Lamour

                     
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Articles dans des revues à comité de lecture

Random Ising model in three dimensions: Theory, experiment and simulation - A difficult coexistence
Berche B., Berche P.E., Chatelain C., Janke W.
Condensed Matter Physics 8 (2005) 47
DOI : 10.5488/CMP.8.1.47
ArXiv : cond-mat/0411255 [PDF]
HAL : hal-00003247

We discuss different approaches to the study of the effect of disorder in the three-dimensional Ising model. From the theoretical point of view, renormalization group calculations provide quite accurate results. Experiments carried out on crystalline mixtures of compounds lead to measurements as accurate as three digits on the values of critical exponents. Numerically, extensive Monte Carlo simulations then pretend to be of comparable accuracy. Life becomes complicated when details are compared between the three approaches.



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