T_c ≈ 2.269
T/T_c: —
|M|: —
E/N: —
χ: —
C: —
T/T_c: —
|M|: —
E/N: —
χ: —
C: —
Exact solution (Onsager 1944): T_c = 2/ln(1+√2) ≈ 2.269J/k_B
Critical exponents:
β=1/8, γ=7/4, ν=1
α=0 (log), δ=15
Magnetization near T_c:
M ~ |t|^β, t=(T-T_c)/T_c
Colors: red=↑, blue=↓
Critical exponents:
β=1/8, γ=7/4, ν=1
α=0 (log), δ=15
Magnetization near T_c:
M ~ |t|^β, t=(T-T_c)/T_c
Colors: red=↑, blue=↓