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Phys. Rev. E 55, R4841–R4844 (1997)

Analytic study of domain growth in the Ising model with quenched impurities

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Zhi-Feng Huang and Bing-Lin Gu
CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, The People's Republic of China
and Department of Physics, Tsinghua University, Beijing 100084, The People's Republic of China

We analytically study the one-dimensional kinetic Ising model with Glauber dynamics in the presence of quenched impurities. We derive the evolution equations for the expectation value of spin and the equal-time pair correlation function. The scaling form of the structure factor is given by Gk(t)=(1-ρ)t1/2g((1-ρ2)k2t,ρ2t) with the impurity concentration ρ, and its scaling function is calculated at zero temperature. We also obtain the average pinned domain size at long time for quenches to T=0 in one dimension, and find that it scales inversely with impurity concentration for the small ρ.

© 1997 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.55.R4841
DOI:
10.1103/PhysRevE.55.R4841
PACS:
05.70.Ln, 64.60.Cn, 05.40.+j