- 96-410 Parreira J. R., Bolina O., Perez J. F.
- Neel Order in the Ground State of Spin-1/2 Heisenberg
Antiferromagnetic Multilayer Systems
Sep 10, 96
(auto. generated ps),
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Abstract. We show the existence of Neel order for the ground state of a system
composed by M two-dimensional layers with spin-1/2 and Heisenberg
antiferromagnetic coupling, provided M \geq 8. The method uses the
infrared bounds for the ground state combined with the ideas introduced
by Kennedy, Lieb and Shastry.