论文信息 - Curie and Néel temperatures of quantum magnets

Curie and Néel temperatures of quantum magnets

We estimate, using high-temperature series expansions, the transition temperatures of the spin , 1 and Heisenberg ferromagnet and antiferromagnet in three dimensions. The manner in which the difference between Curie and Néel temperatures vanishes with increasing spin quantum number is investigated.

J. Oitmaa | W. Zheng

[1] Rajiv R. P. Singh,et al. High-order convergent expansions for quantum many particle systems , 2000 .

[2] David P. Landau,et al. Phase transitions and critical phenomena , 1989, Computing in Science & Engineering.

[3] K. Pan. Néel temperature and magnetic phase boundary of the spin- 1 2 Heisenberg antiferromagnet in three dimensions , 1999 .

[4] P. Butera,et al. N vector spin models on the sc and the bcc lattices: A Study of the critical behavior of the susceptibility and of the correlation length by high temperature series extended to order beta(21) , 1997, hep-lat/9703018.

[5] Oitmaa,et al. High-temperature-series study of the spin-1/2 Heisenberg ferromagnet. , 1996, Physical review. B, Condensed matter.

[6] J. Eve,et al. High-Temperature Expansions for the Spin-½ Heisenberg Model , 1967 .

[7] G. S. Rushbrooke,et al. On the high temperature staggered susceptibility of Heisenberg model antiferromagnetics , 1963 .