Paul B. Slater
Thermodynamics of Quantum Spin Systems
Masanori Ohya, Dėnes Petz
Wigner expansion for the thermodynamics of spin systems
Richard S. Likes, N. Papanicolaou
Thermodynamics of Finite Quantum Systems: Application to Spin Magnetism
Samuel Sitotaw, Rostislav A. Serota
A group theoretical approach of thermodynamic limits in spin systems
Didier Arnal, J. C. Cortet
Thermodynamic properties of one-dimensional magnetic systems with arbitrary spin
Kazuhiko Minami, 南 和彦
Thermodynamic Properties of Spin 1/2 Triangular Antiferromagnet
Masatoshi Imada
Finite size calculation up to 18 spins combined with the extrapolation to the thermodynamic limit is performed to obtain thermodynamic properties of spin 1/2 triangular antiferromagnet. It shows that both of isotropic and Ising-like Heisenberg systems are in quantum spin fluid state at low temperatures with the singlet ground state. In contrast with the classical system, the result is consistent with the picture that the sublattice ordering has no relevance and no phase transition occurs.