Critical sound attenuation in a diluted Ising system

Details Critical sound attenuation in a diluted Ising system Critical sound attenuation in a diluted Ising system

2005-12-14

arxiv.org/abs/cond-mat/0512316v1

J.Phys.: Condens. Matter 17 (2005) L485-L492

Physics

Condensed Matter

Disordered Systems and Neural Networks

12 RevTeX pages, 4 figures

Scientific paper

10.1088/0953-8984/17/46/L01

The field-theoretic description of dynamical critical effects of the influence of disorder on acoustic anomalies near the temperature of the second-order phase transition is considered for three-dimensional Ising-like systems. Calculations of the sound attenuation in pure and dilute Ising-like systems near the critical point are presented. The dynamical scaling function for the critical attenuation coefficient is calculated. The influence of quenched disorder on the asymptotic behaviour of the critical ultrasonic anomalies is discussed.

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