Universality in four-dimensional random-field magnets
نویسندگان
چکیده
منابع مشابه
Susceptibility and percolation in two-dimensional random field Ising magnets.
The ground-state structure of the two-dimensional random field Ising magnet is studied using exact numerical calculations. First we show that the ferromagnetism, which exists for small system sizes, vanishes with a large excitation at a random field strength-dependent length scale. This breakup length scale L(b) scales exponentially with the squared random field, exp(A/delta(2)). By adding an e...
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The key unresolved feature of the random eld Ising model is the complex, history dependent behavior found both in experiments and numerical simulations. It appears that for strong enough disorder, and low temperatures, the system falls out of equilibrium, displaying anomalously slow relaxation and other features characteristic of glassy materials. Recently, it has been proposed that this behavi...
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ژورنال
عنوان ژورنال: The European Physical Journal B
سال: 2015
ISSN: 1434-6028,1434-6036
DOI: 10.1140/epjb/e2015-60362-4