Magnon-Polaron
Spin-lattice coupling — magnon-phonon anticrossing & hybridized modes
Parameters
Spin-lattice coupling λ:
0.30
Magnon gap Δ_m (GHz):
5.0
Sound velocity v_ph:
1.00
Magnon stiffness D:
0.50
Damping α:
0.02
Magnon-polaron:
H = ω_m a†a + ω_ph b†b
+ λ(a†b + ab†)
Anticrossing gap: 2λ
at k where ω_m = ω_ph
Hybridized modes:
ω± = ½(ω_m+ω_ph) ± R
R = √(λ² + δ²/4)