Magnetic response of a disordered binary ferromagnetic alloy to an oscillating magnetic field

TL;DR

This study uses Monte Carlo simulations to explore the non-equilibrium phase transitions and magnetic behaviors of a disordered binary ferromagnetic alloy under oscillating magnetic fields, revealing how external parameters influence its magnetic properties.

Contribution

It provides a detailed analysis of dynamic phase transitions and hysteresis behaviors in a disordered alloy, highlighting the effects of field amplitude, period, and component concentration, which were not thoroughly studied before.

Findings

Dynamic phase transition points depend on field amplitude, period, and alloy composition.

Hysteresis characteristics such as coercivity and loop area vary with external parameters.

The system exhibits unusual thermal and magnetic behaviors under oscillating magnetic fields.

Abstract

By means of Monte Carlo simulation with local spin update Metropolis algorithm, we have elucidated non-equilibrium phase transition properties and stationary-state treatment of a disordered binary ferromagnetic alloy of the type $A_{p}B_{1-p}$ on a square lattice. After a detailed analysis, we have found that the system shows many interesting and unusual thermal and magnetic behaviors, for instance, the locations of dynamic phase transition points change significantly depending upon amplitude and period of the external magnetic field as well as upon the active concentration of $A-$ type components. Much effort has also been dedicated to clarify the hysteresis tools, such as coercivity, dynamic loop area as well as dynamic correlations between time dependent magnetizations and external time dependent applied field as a functions of period and amplitude of field as well as active concentration of of $A-$ type components, and outstanding physical findings have been reported in order to better understand the dynamic process underlying present system.