Magnetic Skyrmion
Topological Charge Density · Spin Texture · Q = ±1
Skyrmion Parameters
Radius λ:
60
px
Helicity γ:
0
°
Vorticity m:
1
Polarity p:
+1
Néel (γ=0°)
Bloch (γ=90°)
Anti-sk
Q = —
Topological charge: Q = (1/4π)∫ n·(∂ₓn × ∂ᵧn) d²r
Skyrmion number Q=±1 is topologically protected.
Color: in-plane angle; brightness: out-of-plane (Mz).
Arrows show in-plane spin components (Mx,My).