Hysteresis effects in spin systems with quenched disorder

Area of Science:

• Condensed matter physics
• Statistical mechanics
• Magnetism

Background:

• Spin-glass systems exhibit complex magnetic properties.
• Hysteresis is a key characteristic of magnetic materials.
• Understanding hysteresis is crucial for applications in magnetic storage and spintronics.

Purpose of the Study:

• To investigate hysteresis effects in spin-glass systems.
• To analyze the dependence of hysteresis loop area on disorder amplitude.
• To determine the influence of applied magnetic field frequency on hysteresis.

Main Methods:

• Numerical simulations of spin-glass models.
• Calculation of hysteresis loop area.
• Systematic variation of disorder amplitude and magnetic field frequency.

Main Results:

• Hysteresis loop area shows a clear dependence on disorder amplitude.
• The frequency of the applied magnetic field significantly affects the hysteresis loop area.
• Detailed numerical data illustrating these dependencies are presented.

Conclusions:

• Disorder and magnetic field frequency are critical parameters influencing hysteresis in spin-glass systems.
• The findings provide a deeper understanding of the dynamic magnetic response of spin glasses.
• This research contributes to the fundamental knowledge of disordered magnetic materials.