Frustrated Antiferromagnet

Triangular & kagome lattice — geometric frustration & ground state degeneracy

Lattice & Model

Observables

Energy/site:
Magnetization:
Frustration F:
MC steps: 0

Key Physics

H = J Σ⟨ij⟩ Sᵢ·Sⱼ (J>0, AFM)
Triangular: cannot satisfy all bonds → macroscopic GS degeneracy
Kagome: flat band, W = exp(L/3) ground states
Order-by-disorder: thermal/quantum fluctuations select √3×√3