Néel-Brown Stochastic Magnetic Switching
Thermally activated magnetization reversal — Arrhenius escape over energy barriers
Parameters
Temperature T/T₀:
0.3
Applied field H/H_k:
0.0
Anisotropy K:
1.0
Damping α:
0.5
Statistics
Magnetization m
—
Switching rate Γ
—
Barrier ΔE/kT
—
Switches (total)
0
Mean dwell time
—
Theory
Γ = f₀ exp(-ΔE/k_BT)
ΔE = KV(1 - H/H_k)²
τ = 1/Γ (Néel relaxation time)
f₀ ~ 10⁹–10¹² Hz (attempt freq)