Hard spin mean field theory of 3D stacked-triangular-lattice system
Author
Akgüç, Gürsoy Bozkurt
Advisor
Yalabık, Cemal
Date
1994Publisher
Bilkent University
Language
English
Type
ThesisItem Usage Stats
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Abstract
Closed form solution of ‘Hard spin mean field theory’ is constructed
and applied to ‘Three dimensional stacked-triangular-system’. The phase
diagram of this system is examined. ‘Free energy’ is calculated to reveal the
thermodynamically stable state in the phase diagram. A new second order
phase transition line is found near the zero external magnetic field. Strong
evidence is found for the tricriticality point behaviour in the multicritical
region.