Work

Ordering kinetics in the random-bond X Y model

Year: 2017

Type: article

Abstract: We present a comprehensive Monte Carlo study of domain growth in the random-bond XY model with nonconserved kinetics. The presence of quenched disorder slows down domain growth in d=2,3. In d=2, we observe power-law growth with a disorder-dependent exponent on the time scales of our simulation. In d=3, we see the signature of an asymptotically logarithmic growth regime. The scaling functions for the real-space correlation function are seen to be independent of the disorder. However, the same does not apply for the two-time autocorrelation function, demonstrating the breakdown of superuniversality.

Source: Physical review. E

DOI: 10.1103/physreve.96.042127

Authors: M. Kumar, S. Chatterjee, R. Paul, S. Puri

Institutions: Jawaharlal Nehru University, Indian Association for the Cultivation of Science

Language: Latvian

Topic: Theoretical and Computational Physics

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Council of Scientific and Industrial Research, India

Awards: G1773677655, G8813753665