Field-Theory Description of Nonequilibrium Critical Dynamics for Spin Systems

Ivan A. Kalashnikov; Pavel V. Prudnikov

doi:10.4028/www.scientific.net/SSP.190.23

Paper Titles

Functional-Integral Approach to the Investigation of the Spin-Spiral Magnetic Order and Phase Separation
p.7

Theoretical Investigation of the Magnetic Order in FeAs
p.11

Spin-Waves in Stoner Ferromagnetic Phase of a Two-Dimensional Electron System
p.15

Magnetic Excitations in Locally Non-Equilibrium Media
p.19

Field-Theory Description of Nonequilibrium Critical Dynamics for Spin Systems
p.23

Description of Substitutional Adsorption of Magnetic Ions on Metallic Surfaces with Formation of Monolayer Ferromagnetic Films Using the Spin-Density Functional Method
p.27

Non-Equilibrium Critical Dynamics of Ferromagnets with Long Range Correlated Defects
p.31

Ab Initio Calculation of the System Cr–GaSb: A New High-Pressure Phase Containing Defects
p.35

Non-Equilibrium Critical Relaxation of Heisenberg Ferromagnets with Long-Range Correlated Defects
p.39

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Field-Theory Description of Nonequilibrium Critical Dynamics for Spin Systems

Abstract:

Renormalization-group approach is applied to investigate the short-time nonequilibriumcritical behavior of pure and diluted spin systems with nonmagnetic point-like impurities.The dissipative relaxation dynamics with non-conserved order parameter is considered. For thefirst time the description of the order parameter growth induced by the initial nonequilibriumstate of system is carried out at fixed dimension d = 3 without use of ε-expansion.