Bilayered Spin-S Heisenberg Model in Fractional Dimensions
1998 ◽
Vol 12
(18)
◽
pp. 1809-1812
◽
Keyword(s):
The Self
◽
The ground state and the phase transitions of the bilayered spin-S anti-ferromagnetic Heisenberg model were studied by Ng et al.1 by using the Schwinger boson mean field theory. In this paper, an analytic continuation of the self-consistent equations is carried out in order to study the extension of the model to fractional dimensions from 1 to 2. Decreasing the dimensionality from 2 has an effect similar to that of decreasing the spin S. The corresponding phase diagram and phase transition will also be discussed.