Geometrical aspects of aging and rejuvenation in the Ising spin glass: A numerical study
نویسندگان
چکیده
منابع مشابه
Geometrical aspects of aging and rejuvenation in the Ising spin glass: A numerical study
We present a comprehensive study of nonequilibrium phenomena in the low-temperature phase of the Edwards-Anderson Gaussian spin glass in three and four spatial dimensions. Many effects can be understood in terms of a time-dependent coherence length lT such that length scales smaller than lT are equilibrated, whereas larger length scales are essentially frozen. The time and temperature dependenc...
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Non-equilibrium aging dynamics in 3D Ising spin glass Cu0.5Co0.5Cl2-FeCl3 GBIC has been studied by zero-field cooled (ZFC) magnetization and low frequency AC magnetic susceptibility (f = 0.05 Hz), where Tg = 3.92± 0.11 K. The time dependence of the relaxation rate S(t) = (1/H)dMZF C/dln t for the ZFC magnetization after the ZFC aging protocol, shows a peak at a characteristic time tcr near a wa...
متن کاملComment on Numerical Study on Aging Dynamics in the 3D Ising Spin Glass Model
We show that the dynamical behavior of the 3D Ising spin glass with Gaussian couplings is not compatible with a droplet dynamics. We show that this is implied from the data of reference [1], that, when analyzed in an accurate way, give multiple evidences of this fact. Our study is based on the analysis of the overlap-overlap correlation function, at different values of the separation r and of t...
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Using Monte Carlo simulations, we have studied aging phenomena in three-dimensional Gaussian Ising spin-glass model focusing on quasi-equilibrium behavior of the spin autocorrelation functions. Weak violation of the time translational invariance in the quasiequilibrium regime is analyzed in terms of effective stiffness for droplet excitations in the presence of domain walls. The simulated resul...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2002
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.66.054404