ISSN:
1572-9613
Keywords:
Phase transitions
;
Heisenberg ferromagnet
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We prove the existence of spontaneous magnetization at sufficiently low temperature, and hence of a phase transition, in a variety of quantum spin systems in three or more dimensions. The isotropic spin 1/2x-y model and the Heisenberg antiferromagnet with spin 1, 3/2,...and with nearest neighbor interactions on a simple cubic lattice are included.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01106729
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