BILAYERED SPIN-S HEISENBERG-MODEL IN FRACTIONAL DIMENSIONS

Authors
Citation
Kk. Ng, BILAYERED SPIN-S HEISENBERG-MODEL IN FRACTIONAL DIMENSIONS, International journal of modern physics b, 12(18), 1998, pp. 1809-1812
Citations number
13
Categorie Soggetti
Physics, Condensed Matter","Physycs, Mathematical","Physics, Applied
ISSN journal
02179792
Volume
12
Issue
18
Year of publication
1998
Pages
1809 - 1812
Database
ISI
SICI code
0217-9792(1998)12:18<1809:BSHIFD>2.0.ZU;2-B
Abstract
The ground state and the phase transitions of the bilayered spin-S ant i-ferromagnetic Heisenberg model were stuided by Ng et al.(1) by using the Schwinger boson mean field theory. In this paper, an analytic con tinuation 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 tran sition will also be discussed.