Analytical Solution of the 2 d Classical Heisenberg Model
1995; Institute of Physics; Volume: 32; Issue: 6 Linguagem: Inglês
10.1209/0295-5075/32/6/012
ISSN1286-4854
Autores Tópico(s)Quantum and electron transport phenomena
ResumoFor the first time we exactly establish the term of higher degree in the polynomial expansion of the zero-field partition function. In the infinite-layer limit, we derive analytical expressions for the spin-spin correlations, the susceptibility and the specific heat, and we examine their respective behaviours near the critical temperature Tc = 0 K. We calculate the analytical values of critical exponents α, γ, η and ν.
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